{"id":2539,"date":"2022-06-13T09:00:00","date_gmt":"2022-06-13T12:00:00","guid":{"rendered":"https:\/\/professorpinguim.com.br\/blog\/?p=2539"},"modified":"2023-08-06T20:59:58","modified_gmt":"2023-08-06T23:59:58","slug":"tudo-sobre-campo-magnetico-de-ima-exercicios-resolvidos","status":"publish","type":"post","link":"https:\/\/professorpinguim.com.br\/blog\/tudo-sobre-campo-magnetico-de-ima-exercicios-resolvidos\/","title":{"rendered":"Tudo sobre campo magn\u00e9tico de \u00edm\u00e3 com Exerc\u00edcios Resolvidos"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Ol\u00e1, pessoal, tudo bem? Nesta aula, vamos fazer uma revis\u00e3o completa sobre eletromagnetismo, mais especificamente sobre campo magn\u00e9tico produzido por \u00edm\u00e3. Vamos l\u00e1?<\/p>\n\n\n\n<!--more-->\n\n\n\n<h2 class=\"wp-block-heading\">Princ\u00edpio da atra\u00e7\u00e3o e da repuls\u00e3o entre \u00edm\u00e3s<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Quando tivermos \u00edm\u00e3s com p\u00f3los de mesmo nome, haver\u00e1 repuls\u00e3o. Observe:<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"329\" height=\"191\" src=\"https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2021\/01\/im\u00e3s-p\u00f3los-iguais.png\" alt=\"\" class=\"wp-image-2540\" srcset=\"https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2021\/01\/im\u00e3s-p\u00f3los-iguais.png 329w, https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2021\/01\/im\u00e3s-p\u00f3los-iguais-300x174.png 300w\" sizes=\"(max-width: 329px) 100vw, 329px\" \/><\/figure><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Quando tivermos \u00edm\u00e3s com polos com nomes diferentes, haver\u00e1 atra\u00e7\u00e3o. Veja:<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img decoding=\"async\" width=\"350\" height=\"102\" src=\"https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2021\/01\/im\u00e3s-p\u00f3los-diferentes.png\" alt=\"\" class=\"wp-image-2541\" srcset=\"https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2021\/01\/im\u00e3s-p\u00f3los-diferentes.png 350w, https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2021\/01\/im\u00e3s-p\u00f3los-diferentes-300x87.png 300w\" sizes=\"(max-width: 350px) 100vw, 350px\" \/><\/figure><\/div>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Inseparabilidade dos p\u00f3los de um \u00edm\u00e3<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">O que acontece quando cortamos um \u00edm\u00e3? Para entendermos isso, precisamos compreender os dois cortes que podem ser feitos em um \u00edm\u00e3. S\u00e3o eles:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Corte transversal: <\/strong>\u00e9 o que mais aparece em provas. Veja a figura:<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img decoding=\"async\" width=\"255\" height=\"114\" src=\"https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2021\/01\/corte-transversal.png\" alt=\"\" class=\"wp-image-2542\"\/><\/figure><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Repare que, mesmo ap\u00f3s o corte, os p\u00f3los norte e sul continuam como antes:<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"269\" height=\"65\" src=\"https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2021\/01\/p\u00f3los-norte-e-sul.png\" alt=\"\" class=\"wp-image-2543\"\/><\/figure><\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Aten\u00e7\u00e3o:<\/strong> ap\u00f3s o corte, os dois novos peda\u00e7os de \u00edm\u00e3 n\u00e3o ficar\u00e3o apenas com um polo, mas cada peda\u00e7o ter\u00e1 um polo norte e um polo sul. Ou seja, no corte transversal, os dois peda\u00e7os que foram separados se atraem novamente.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Corte longitudinal:<\/strong><\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"321\" height=\"73\" src=\"https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2021\/01\/corte-longitudinal.png\" alt=\"\" class=\"wp-image-2544\" srcset=\"https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2021\/01\/corte-longitudinal.png 321w, https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2021\/01\/corte-longitudinal-300x68.png 300w\" sizes=\"(max-width: 321px) 100vw, 321px\" \/><\/figure><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Ap\u00f3s esse corte, teremos dois novos \u00edm\u00e3s com a mesma orienta\u00e7\u00e3o do polos:<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"202\" height=\"88\" src=\"https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2021\/01\/im\u00e3s-mesmos-p\u00f3los.png\" alt=\"\" class=\"wp-image-2545\"\/><\/figure><\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Aten\u00e7\u00e3o: <\/strong>no corte longitudinal, os dois peda\u00e7os que foram separados se repelem.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Vetor da indu\u00e7\u00e3o magn\u00e9tica<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Sempre que colocamos um \u00edm\u00e3 pr\u00f3ximo a algum tipo de p\u00f3 met\u00e1lico, como a limalha de ferro, os pequenos fragmentos ir\u00e3o se orientar de acordo com as linhas do campo de indu\u00e7\u00e3o magn\u00e9tica (B).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Como as linhas de indu\u00e7\u00e3o magn\u00e9tica sempre saem do polo norte em dire\u00e7\u00e3o ao polo sul, o vetor de indu\u00e7\u00e3o magn\u00e9tica \u00e9 sempre tangente \u00e0 linha de for\u00e7a. Veja:<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"385\" height=\"232\" src=\"https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2021\/01\/vetor-da-indu\u00e7\u00e3o-magn\u00e9tica.png\" alt=\"\" class=\"wp-image-2546\" srcset=\"https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2021\/01\/vetor-da-indu\u00e7\u00e3o-magn\u00e9tica.png 385w, https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2021\/01\/vetor-da-indu\u00e7\u00e3o-magn\u00e9tica-300x181.png 300w\" sizes=\"(max-width: 385px) 100vw, 385px\" \/><\/figure><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Existem quatro pontos importantes que podemos desenhar ao redor de um \u00edm\u00e3. Observe a imagem:<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"801\" height=\"352\" src=\"https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2021\/01\/im\u00e3.png\" alt=\"\" class=\"wp-image-2548\" srcset=\"https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2021\/01\/im\u00e3.png 801w, https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2021\/01\/im\u00e3-300x132.png 300w, https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2021\/01\/im\u00e3-768x337.png 768w, https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2021\/01\/im\u00e3-670x294.png 670w\" sizes=\"(max-width: 801px) 100vw, 801px\" \/><\/figure><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Repare que:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Como o vetor de indu\u00e7\u00e3o magn\u00e9tica (B) sempre sai do polo norte, no ponto A da figura, o vetor acompanha a linha.<\/li><li>Como o campo entra novamente pelo polo sul, no ponto C da figura, o vetor acompanha a linha novamente.<\/li><li>Caso queiramos desenhar o vetor de indu\u00e7\u00e3o magn\u00e9tica no ponto B ou no ponto D, n\u00f3s temos que imaginar a linha de indu\u00e7\u00e3o magn\u00e9tica que passa por esses pontos, que s\u00e3o as linhas curvas na figura.<\/li><\/ul>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">B\u00fassola<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">B\u00fassolas s\u00e3o pequenos \u00edm\u00e3s que se orientam de acordo com o campo magn\u00e9tico do local. Ele pode ser originado tanto pelo campo magn\u00e9tico da terra quanto por outro \u00edm\u00e3 ou por uma corrente el\u00e9trica que esteja pr\u00f3xima a ela. A b\u00fassola est\u00e1 sempre orientada com seu polo norte sempre de acordo com o sentido do campo resultante (B<sub>r<\/sub>) que passa pelo local.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Campo magn\u00e9tico terrestre<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Veja a figura:<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"269\" height=\"177\" src=\"https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2021\/01\/campo-magn\u00e9tico-terrestre.png\" alt=\"\" class=\"wp-image-2549\"\/><\/figure><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Essa figura representa uma experimento bastante simples, em que pendura-se um \u00edm\u00e3 por meio de um fio preso exatamente ao seu centro magn\u00e9tico. Nesse caso, o \u00edm\u00e3 vai orientar seu polo norte de acordo com o norte geogr\u00e1fico da Terra.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Quando isso acontece, significa que, para onde o norte geogr\u00e1fico est\u00e1 apontando, existe um polo sul magn\u00e9tico que o atrai. Observe a figura:<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"337\" height=\"318\" src=\"https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2021\/01\/p\u00f3lo-sul.png\" alt=\"\" class=\"wp-image-2550\" srcset=\"https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2021\/01\/p\u00f3lo-sul.png 337w, https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2021\/01\/p\u00f3lo-sul-300x283.png 300w\" sizes=\"(max-width: 337px) 100vw, 337px\" \/><\/figure><\/div>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Exerc\u00edcios resolvidos sobre \u00edm\u00e3s e campo magn\u00e9tico<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Para entendermos como a b\u00fassola se orienta, vamos ver dois exemplos do mesmo estilo de muitos exerc\u00edcios que nos ajudar\u00e3o a entender o que \u00e9 o campo magn\u00e9tico resultante devido \u00e0 a\u00e7\u00e3o de dois \u00edm\u00e3s.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Exerc\u00edcio 1<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">O vetor de indu\u00e7\u00e3o magn\u00e9tica resultante (B<sub>r<\/sub>) \u00e9 dado pela soma vetorial dos campos magn\u00e9ticos que atuam em um ponto.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Em nosso exemplo, vamos considerar que o vetor de indu\u00e7\u00e3o magn\u00e9tica terrestre \u00e9 desprez\u00edvel, levando em conta apenas os campos dos \u00edm\u00e3s. Considere que colocamos uma b\u00fassola no ponto indicado entre os dois \u00edm\u00e3s na imagem abaixo:<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2021\/01\/dois-im\u00e3s-1-1024x576.png\" alt=\"\" class=\"wp-image-2552\" srcset=\"https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2021\/01\/dois-im\u00e3s-1-1024x576.png 1024w, https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2021\/01\/dois-im\u00e3s-1-300x169.png 300w, https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2021\/01\/dois-im\u00e3s-1-768x432.png 768w, https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2021\/01\/dois-im\u00e3s-1-1536x864.png 1536w, https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2021\/01\/dois-im\u00e3s-1-670x377.png 670w, https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2021\/01\/dois-im\u00e3s-1-1060x596.png 1060w, https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2021\/01\/dois-im\u00e3s-1.png 1920w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Agora, vamos tra\u00e7ar nossas linhas para ver o que acontece:&nbsp;<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2021\/01\/image10-1024x576.png\" alt=\"\" class=\"wp-image-2553\" width=\"580\" height=\"326\" srcset=\"https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2021\/01\/image10-1024x576.png 1024w, https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2021\/01\/image10-300x169.png 300w, https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2021\/01\/image10-768x432.png 768w, https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2021\/01\/image10-1536x864.png 1536w, https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2021\/01\/image10-670x377.png 670w, https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2021\/01\/image10-1060x596.png 1060w, https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2021\/01\/image10.png 1920w\" sizes=\"(max-width: 580px) 100vw, 580px\" \/><\/figure><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Lembre-se de que o campo sempre sai do polo norte. Portanto, no \u00edm\u00e3 1, o campo B1 segue o sentido indicado. Se o campo B1 sai do norte, ent\u00e3o o campo B2 entra no sul.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Assim, ter\u00edamos que fazer a soma vetorial dos dois campos para descobrir o campo resultante, que seria o norte indicado pela b\u00fassola.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2021\/01\/image2-1024x576.png\" alt=\"\" class=\"wp-image-2554\" srcset=\"https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2021\/01\/image2-1024x576.png 1024w, https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2021\/01\/image2-300x169.png 300w, https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2021\/01\/image2-768x432.png 768w, https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2021\/01\/image2-1536x864.png 1536w, https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2021\/01\/image2-670x377.png 670w, https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2021\/01\/image2-1060x596.png 1060w, https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2021\/01\/image2.png 1920w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\">Exerc\u00edcio 2<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Posicione a b\u00fassola no centro C da circunfer\u00eancia. O vetor de indu\u00e7\u00e3o magn\u00e9tica terrestre n\u00e3o \u00e9 desprezado e \u00e9 dado pelo vetor BT apontado para baixo. Observe:<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2021\/01\/image16-1-1024x576.png\" alt=\"\" class=\"wp-image-2556\" srcset=\"https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2021\/01\/image16-1-1024x576.png 1024w, https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2021\/01\/image16-1-300x169.png 300w, https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2021\/01\/image16-1-768x432.png 768w, https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2021\/01\/image16-1-1536x864.png 1536w, https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2021\/01\/image16-1-670x377.png 670w, https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2021\/01\/image16-1-1060x596.png 1060w, https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2021\/01\/image16-1.png 1920w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/div>\n\n\n\n<ul class=\"wp-block-list\"><li>O polo norte do \u00edm\u00e3 1 gera um campo magn\u00e9tico para baixo (B1).<\/li><li>O polo norte no \u00edm\u00e3 2 gera um campo magn\u00e9tico para a esquerda (B2).<\/li><li>O polo norte do \u00edm\u00e3 3 gera um campo magn\u00e9tico para cima (B3).<\/li><li>Repare, agora, que o \u00edm\u00e3 4 n\u00e3o tem os polos orientados da mesma forma. Nesse caso, o polo sul ser\u00e1 a entrada de um novo campo magn\u00e9tico (B4).<\/li><\/ul>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2021\/01\/image7-1024x576.png\" alt=\"\" class=\"wp-image-2557\" srcset=\"https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2021\/01\/image7-1024x576.png 1024w, https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2021\/01\/image7-300x169.png 300w, https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2021\/01\/image7-768x432.png 768w, https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2021\/01\/image7-1536x864.png 1536w, https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2021\/01\/image7-670x377.png 670w, https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2021\/01\/image7-1060x596.png 1060w, https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2021\/01\/image7.png 1920w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Quando temos \u00edm\u00e3s iguais e \u00e0 mesma dist\u00e2ncia, o campo B3 ir\u00e1 anular o campo B1, ou seja, no eixo y, n\u00e3o h\u00e1 campo resultante. Assim, devemos somar B2 e B4. Veja:<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2021\/01\/image13-1024x576.png\" alt=\"\" class=\"wp-image-2558\" srcset=\"https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2021\/01\/image13-1024x576.png 1024w, https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2021\/01\/image13-300x169.png 300w, https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2021\/01\/image13-768x432.png 768w, https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2021\/01\/image13-1536x864.png 1536w, https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2021\/01\/image13-670x377.png 670w, https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2021\/01\/image13-1060x596.png 1060w, https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2021\/01\/image13.png 1920w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Agora, devemos lembrar que a quest\u00e3o nos disse que o vetor de indu\u00e7\u00e3o magn\u00e9tica terrestre (BT) n\u00e3o \u00e9 desprez\u00edvel. Portanto, com ele poderemos descobrir o campo resultante. Observe:<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2021\/01\/image5-1024x576.png\" alt=\"\" class=\"wp-image-2559\" srcset=\"https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2021\/01\/image5-1024x576.png 1024w, https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2021\/01\/image5-300x169.png 300w, https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2021\/01\/image5-768x432.png 768w, https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2021\/01\/image5-1536x864.png 1536w, https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2021\/01\/image5-670x377.png 670w, https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2021\/01\/image5-1060x596.png 1060w, https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2021\/01\/image5.png 1920w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/div>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Para aprender mais:<\/h2>\n\n\n\n<figure class=\"wp-block-embed-youtube wp-block-embed is-type-video is-provider-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe title=\"Eletromagnetismo - \u00cdm\u00e3s e Campo Magn\u00e9tico - F\u00edsica - Professor Pinguim\" width=\"800\" height=\"450\" src=\"https:\/\/www.youtube.com\/embed\/mVODaoX0Bgs?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Espero que voc\u00ea tenha entendido um pouco melhor sobre <strong>campo magn\u00e9tico de \u00edm\u00e3s<\/strong>. E se quiser ajuda para melhorar seu n\u00edvel de F\u00edsica em outras mat\u00e9rias, <a href=\"https:\/\/professorpinguim.com.br\/\"><strong>entre em contato comigo e escolha o curso de F\u00edsica mais adequado para voc\u00ea<\/strong><\/a>!<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/conteudo.professorpinguim.com.br\/curso-de-fisica-gratuito\" target=\"_blank\" rel=\"noopener noreferrer\"><img decoding=\"async\" src=\"https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2022\/05\/curso-fisica-professor-pinguim.png\" alt=\"Curso de F\u00edsica Gr\u00e1tis do Professor Pinguim\" class=\"wp-image-11364\"\/><\/a><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Tem d\u00favidas de como funciona a minha plataforma e a minha metodologia de ensino? <strong><a rel=\"noreferrer noopener\" href=\"https:\/\/conteudo.professorpinguim.com.br\/experimente-plataforma\" target=\"_blank\">Clique aqui<\/a> <\/strong>e acesse gratuitamente os m\u00f3dulos de <strong>Cinem\u00e1tica <\/strong>e <strong>\u00d3ptica<\/strong> do meu <strong>&nbsp;SEMIEXTENSIVO exclusivo para FUVEST, UNICAMP, UNESP E UNIFESP. <\/strong>Tenho certeza que vai mudar a sua vida.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2020\/07\/BannerBlog_728x90.png\" alt=\"O atributo alt desta imagem est\u00e1 vazio. O nome do arquivo \u00e9 BannerBlog_728x90.png\"\/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Me acompanhe nas redes sociais: curta a minha&nbsp;<a href=\"https:\/\/www.facebook.com\/professorpinguim\/\"><strong>p\u00e1gina no Facebook<\/strong><\/a><strong>,<\/strong>&nbsp;me&nbsp;siga no&nbsp;<a href=\"https:\/\/www.instagram.com\/professorpinguim\/\"><strong>Instagram<\/strong><\/a><strong>,<\/strong>&nbsp;se inscreva no&nbsp;<a href=\"https:\/\/www.youtube.com\/c\/PinguimV%C3%ADdeoF%C3%ADsica\/?sub_confirmation=1\"><strong>Youtube<\/strong><\/a>&nbsp;e participe do meu canal oficial no&nbsp;<strong><a href=\"http:\/\/professorpinguim.com.br\/telegram\">Telegram<\/a><\/strong>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Nesta aula, vamos fazer uma revis\u00e3o completa sobre eletromagnetismo, mais especificamente sobre campo magn\u00e9tico produzido por \u00edm\u00e3. Vamos l\u00e1?<\/p>\n","protected":false},"author":1,"featured_media":2562,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[746,508,729,744,770,742],"tags":[511,509,515,510,512,513,514],"class_list":["post-2539","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-eletricidade","category-eletromagnetismo","category-eletrostatica","category-exercicios-resolvidos","category-gravitacao","category-hidrostatica","tag-campo-magnetico","tag-campo-magnetico-de-ima","tag-campo-magnetico-terrestre","tag-ima","tag-principio-da-atracao","tag-principio-da-repulsao-entre-imas","tag-vetor-da-inducao-magnetica"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.12 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Tudo sobre campo magn\u00e9tico de \u00edm\u00e3 com Exerc\u00edcios Resolvidos - Professor Pinguim | F\u00edsica<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/professorpinguim.com.br\/blog\/tudo-sobre-campo-magnetico-de-ima-exercicios-resolvidos\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Tudo sobre campo magn\u00e9tico de \u00edm\u00e3 com Exerc\u00edcios Resolvidos - Professor Pinguim | F\u00edsica\" \/>\n<meta property=\"og:description\" content=\"Nesta aula, vamos fazer uma revis\u00e3o completa sobre eletromagnetismo, mais especificamente sobre campo magn\u00e9tico produzido por \u00edm\u00e3. 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