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      <title>Eletrodinâmica  by Geovanna</title>
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      <description>nada além disso...</description>
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      <pubDate>2020-06-17 01:08:53 UTC</pubDate>
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         <title>Resumo</title>
         <author>avlgeovannasf</author>
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         <description><![CDATA[<div>Por denifição temos que a eletrodinâmica estuda as cargas elétricas em movimento.<br>Diante dos mais variados tópicos que se estende o estudo da eletrodinâmica,os casos de elétrons que se deslocam ao longo de fios metálicos formando o chamado "caminho fechado para circulação dos elétrons" que denomina-se circuito elétrico,que é composto por diversos elementos,tais como:<br>1-Corrente elétrica que de modo geral é todo fluxo ordenado de cargas elétricas e não somente de elétrons.Sendo assim,o conceito de corrente elétrica está interligada com certa quantidade de carga elétrica que flui ao longo de uma região por um intervalo de tempo.<br>2-Gerador,responsável por manter os elétrons em movimento ao longo do circuito, que permite a existência de uma diferença de potencial e que tem como função a conversão de uma forma qualquer de energia em energia elétrica,permitindo a  existência da diferença de potencial nesse circuito.Nos geradores encontramos dois polos(-/+) que a finalidade é a busca de regiões com maior potencial(sentido real da corrente)representadas por meio de setas.<br>3-Resistor,que representa as perdas do circuito por calor(efeito joule),no entanto,seu uso serve para converter energia elétrica em térmica pelo efeito joule e para limitar a corrente que circula em certo trecho.<br>4-Resistência,que é uma grandeza dada pelo resultado do funcionamento do resistor,associada com a dificulade de circulação de corrente elétrica.Essa grandeza é medida em ohms.<br>Por último mas não menos importante,temos a grandeza chamada de potência dissipada pelo circuito (potência)que pode ser calculada se soubermos a diferença de potencial do gerador e a corrente que circula no circuito.<br>Referências:apostila e <a href="https://querobolsa.com.br/enem/fisica/eletrodinamica">https://querobolsa.com.br/enem/fisica/eletrodinamica</a></div>]]></description>
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         <pubDate>2020-06-17 01:23:02 UTC</pubDate>
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         <title>Fórmulas </title>
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         <pubDate>2020-06-17 01:23:18 UTC</pubDate>
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         <pubDate>2020-06-17 01:23:31 UTC</pubDate>
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         <pubDate>2020-06-17 01:23:53 UTC</pubDate>
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         <author>avlgeovannasf</author>
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         <pubDate>2020-06-20 07:25:54 UTC</pubDate>
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         <pubDate>2020-06-20 07:26:12 UTC</pubDate>
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         <pubDate>2020-06-20 07:26:29 UTC</pubDate>
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         <pubDate>2020-06-20 07:26:48 UTC</pubDate>
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         <pubDate>2020-06-20 07:27:08 UTC</pubDate>
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         <author>avlgeovannasf</author>
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         <pubDate>2020-06-20 07:27:36 UTC</pubDate>
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         <author>avlgeovannasf</author>
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         <pubDate>2020-06-20 07:27:50 UTC</pubDate>
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         <title>Exercícios </title>
         <author>avlgeovannasf</author>
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         <pubDate>2020-06-20 22:38:10 UTC</pubDate>
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         <pubDate>2020-06-20 22:38:34 UTC</pubDate>
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         <pubDate>2020-06-20 22:38:53 UTC</pubDate>
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         <title>Podcast</title>
         <author>avlgeovannasf</author>
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         <pubDate>2020-06-21 01:13:04 UTC</pubDate>
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