{"id":80902,"date":"2024-01-14T13:21:42","date_gmt":"2024-01-14T13:21:42","guid":{"rendered":"https:\/\/www.electricity-magnetism.org\/circuito-serie-caracteristicas-aplicacao-e-exemplos\/"},"modified":"2024-01-20T10:10:51","modified_gmt":"2024-01-20T10:10:51","slug":"circuito-serie-caracteristicas-aplicacao-e-exemplos","status":"publish","type":"post","link":"https:\/\/www.electricity-magnetism.org\/pt-br\/circuito-serie-caracteristicas-aplicacao-e-exemplos\/","title":{"rendered":"Circuito S\u00e9rie | Caracter\u00edsticas, Aplica\u00e7\u00e3o e Exemplos"},"content":{"rendered":"<h2>Circuito em S\u00e9rie<\/h2>\n<p>Um circuito em s\u00e9rie \u00e9 uma configura\u00e7\u00e3o el\u00e9trica na qual todos os componentes s\u00e3o conectados em sequ\u00eancia, formando um \u00fanico caminho cont\u00ednuo. Essa disposi\u00e7\u00e3o permite que a corrente flua sequencialmente atrav\u00e9s de cada componente. A resist\u00eancia total em um circuito em s\u00e9rie \u00e9 igual \u00e0 soma das resist\u00eancias individuais de cada componente. Neste tipo de circuito, a corrente permanece constante em todos os componentes, enquanto a tens\u00e3o se divide entre eles proporcionalmente \u00e0s suas resist\u00eancias. Circuitos em s\u00e9rie s\u00e3o comumente usados em v\u00e1rios dispositivos eletr\u00f4nicos, como em conjuntos de luzes natalinas e dispositivos simples a bateria, devido \u00e0 sua simplicidade e facilidade de an\u00e1lise. No entanto, uma desvantagem dos circuitos em s\u00e9rie \u00e9 que, se um componente falhar ou for desconectado, todo o circuito \u00e9 interrompido, fazendo com que todos os componentes parem de funcionar.<\/p>\n<h2>Caracter\u00edsticas dos Circuitos em S\u00e9rie<\/h2>\n<ul>\n<li>Componentes conectados em sequ\u00eancia em um \u00fanico caminho.<\/li>\n<li>A mesma corrente flui atrav\u00e9s de todos os componentes.<\/li>\n<li>A resist\u00eancia total \u00e9 a soma das resist\u00eancias individuais.<\/li>\n<li>A tens\u00e3o da fonte \u00e9 distribu\u00edda entre os componentes com base em seus valores de resist\u00eancia.<\/li>\n<\/ul>\n<h2>An\u00e1lise<\/h2>\n<p>Para determinar a resist\u00eancia total: R<sub>total<\/sub> = R<sub>1<\/sub> + R<sub>2<\/sub> + &#8230; + R<sub>n<\/sub>. Para calcular a corrente usando a Lei de Ohm: I = V<sub>total<\/sub> \/ R<sub>total<\/sub>. Para determinar a queda de tens\u00e3o em cada componente: V<sub>componente<\/sub> = I * R<sub>componente<\/sub>. Para calcular a dissipa\u00e7\u00e3o de pot\u00eancia de cada componente: P<sub>componente<\/sub> = I\u00b2 * R<sub>componente<\/sub>.<\/p>\n<h2>Aplica\u00e7\u00f5es<\/h2>\n<ul>\n<li>Limita\u00e7\u00e3o de corrente: Resistores em s\u00e9rie s\u00e3o frequentemente usados para limitar a corrente que flui atrav\u00e9s de um circuito ou componente.<\/li>\n<li>Divis\u00e3o de tens\u00e3o: Divisores de tens\u00e3o podem ser criados conectando resistores em s\u00e9rie, permitindo a distribui\u00e7\u00e3o de tens\u00e3o entre v\u00e1rios componentes.<\/li>\n<li>Circuitos de sensores: Circuitos em s\u00e9rie s\u00e3o usados em redes de sensores, onde v\u00e1rios sensores s\u00e3o conectados em s\u00e9rie para detectar mudan\u00e7as no fluxo de corrente.<\/li>\n<\/ul>\n<h2>Exemplo &#8211; C\u00e1lculo de Circuito de Corrente Cont\u00ednua em S\u00e9rie<\/h2>\n<p>Considere um circuito em s\u00e9rie simples de corrente cont\u00ednua com uma fonte de tens\u00e3o (V) e tr\u00eas resistores (R<sub>1<\/sub>, R<sub>2<\/sub> e R<sub>3<\/sub>) conectados em s\u00e9rie. O objetivo \u00e9 calcular a corrente (I) atrav\u00e9s do circuito e a tens\u00e3o em cada resistor. Valores dados: V = 12 V (CC), R<sub>1<\/sub> = 4 \u03a9, R<sub>2<\/sub> = 6 \u03a9, R<sub>3<\/sub> = 2 \u03a9. Primeiro, determine a resist\u00eancia total (R<sub>total<\/sub>) do circuito em s\u00e9rie: R<sub>total<\/sub> = R<sub>1<\/sub> + R<sub>2<\/sub> + R<sub>3<\/sub> = 4 \u03a9 + 6 \u03a9 + 2 \u03a9 = 12 \u03a9. Em seguida, calcule a corrente (I) atrav\u00e9s do circuito: I = V \/ R<sub>total<\/sub> = 12 V \/ 12 \u03a9 = 1 A. Por fim, calcule a tens\u00e3o em cada resistor: V<sub>R1<\/sub> = I * R<sub>1<\/sub> = 1 A * 4 \u03a9 = 4 V, V<sub>R2<\/sub> = I * R<sub>2<\/sub> = 1 A * 6 \u03a9 = 6 V, V<sub>R3<\/sub> = I * R<sub>3<\/sub> = 1 A * 2 \u03a9 = 2 V. Conclus\u00e3o: a corrente (I) atrav\u00e9s do circuito em s\u00e9rie \u00e9 de 1 A, e as tens\u00f5es em R<sub>1<\/sub> (V<sub>R1<\/sub>), R<sub>2<\/sub> (V<sub>R2<\/sub>) e R<sub>3<\/sub> (V<sub>R3<\/sub>) s\u00e3o 4 V, 6 V e 2 V, respectivamente. Observe que a soma das tens\u00f5es individuais \u00e9 igual \u00e0 tens\u00e3o da fonte: V = V<sub>R1<\/sub> + V<sub>R2<\/sub> + V<sub>R3<\/sub> = 4 V + 6 V + 2 V = 12 V.<\/p>\n<h2>Exemplo &#8211; C\u00e1lculo de Circuito de Corrente Alternada em S\u00e9rie<\/h2>\n<p>Considere um circuito em s\u00e9rie simples com um resistor (R), um capacitor (C) e um indutor (L) conectados a uma fonte de tens\u00e3o de corrente alternada (V). O objetivo \u00e9 calcular a corrente (I) e a tens\u00e3o em cada componente. Usaremos a t\u00e9cnica de an\u00e1lise de fasores para esse c\u00e1lculo. Valores dados: V = 120 V (rms) a uma frequ\u00eancia de 60 Hz, R = 10 \u03a9, L = 200 mH, C = 100 \u03bcF. Primeiro, calcule a frequ\u00eancia angular (\u03c9): \u03c9 = 2 * \u03c0 * f = 2 * \u03c0 * 60 \u2248 377 rad\/s. Em seguida, calcule a reat\u00e2ncia indutiva (X<sub>L<\/sub>) e a reat\u00e2ncia capacitiva (X<sub>C<\/sub>): X<sub>L<\/sub> = \u03c9 * L = 377 * 0.2 = 75.4 \u03a9, X<sub>C<\/sub> = 1 \/ (\u03c9 * C) = 1 \/ (377 * 100 * 10^(-6)) \u2248 26.5 \u03a9. Determine a imped\u00e2ncia total (Z) do circuito em s\u00e9rie: Z = R + j(X<sub>L<\/sub> &#8211; X<sub>C<\/sub>) = 10 + j(75.4 &#8211; 26.5) = 10 + j48.9 \u03a9. Calcule a magnitude da imped\u00e2ncia: |Z| = \u221a(R\u00b2 + (X<sub>L<\/sub> &#8211; X<sub>C<\/sub>)\u00b2) = \u221a(10\u00b2 + 48.9\u00b2) \u2248 50.1 \u03a9. Calcule a corrente (I) atrav\u00e9s do circuito: I = V \/ |Z| = 120 V \/ 50.1 \u03a9 \u2248 2.4 A. Calcule a tens\u00e3o em cada componente: V<sub>R<\/sub> = I * R = 2.4 A * 10 \u03a9 = 24 V, V<sub>L<\/sub> = I * X<sub>L<\/sub> = 2.4 A * 75.4 \u03a9 \u2248 180.96 V, V<sub>C<\/sub> = I * X<sub>C<\/sub> = 2.4 A * 26.5 \u03a9 \u2248 63.6 V. Conclus\u00e3o: a corrente (I) atrav\u00e9s do circuito em s\u00e9rie \u00e9 aproximadamente 2.4 A, e as tens\u00f5es no resistor (V<sub>R<\/sub>), indutor (V<sub>L<\/sub>) e capacitor (V<sub>C<\/sub>) s\u00e3o aproximadamente 24 V, 180.96 V e 63.6 V, respectivamente. Observe que a soma das magnitudes das tens\u00f5es individuais n\u00e3o \u00e9 igual \u00e0 tens\u00e3o da fonte devido \u00e0s diferen\u00e7as de fase entre as tens\u00f5es nos componentes reativos (indutor e capacitor).<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.electricity-magnetism.org\/wp-content\/uploads\/2022\/01\/logo.png\" alt=\"\" \/><\/p>\n<div style=\"text-align: center; font-size: 20px;\">\n    <a href=\"https:\/\/www.electricity-magnetism.org\/series-circuit\/\">Original Article<\/a>\n<\/div>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Um circuito em s\u00e9rie \u00e9 uma configura\u00e7\u00e3o el\u00e9trica na qual todos os componentes s\u00e3o conectados ponta a ponta em um caminho \u00fanico e cont\u00ednuo.<\/p>\n","protected":false},"author":1,"featured_media":1581,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_generate-full-width-content":"","footnotes":""},"categories":[14],"tags":[],"class_list":["post-80902","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nao-categorizado","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-50"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v17.9 - 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