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Q431341 #1
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Q431341 #1
Commits on Jun 26, 2023
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(Eng. de Equipamentos Jr Eletrônica - Petrobras 2012/1) A figura apresenta um circuito em corrente contínua composto por uma fonte de tensão de 5,4 V, quatro resistências com valores de 1 Ω, 2 Ω, 5 Ω e 10 Ω, além de uma fonte de corrente, cujo valor depende da tensão nos terminais da resistência de 5 Ω (if = 2v1). Qual o valor da corrente, em ampères, fornecida pela fonte de corrente? (A) 1 (B) 2 (C) 4 (D) 8 (E) 16
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Q886867 - Engenharia elétrica - TRP 18.
Considere o circuito elétrico de corrente contínua e puramente resistivo, mostrado na Figura abaixo. Conectando-se uma carga resistiva de 2 k entre os terminais a e b, qual é o valor, em mW, da potência dissipada nessa carga? (A) 0,72 (B) 0,96 (C) 1,75 (D) 2,24 (E) 2,88
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A Figura abaixo ilustra um circuito alimentado por uma fonte de corrente de 2 A, conectado a uma carga de 80 Para R=10 , o valor da fonte de tensão do equivalente de Thévenin, em volts, para o circuito inserido no retângulo pontilhado, entre os terminais da carga, é (A)10 (B) 20 (C) 40 (D) 50 (E) 80
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Delete 14- A Figura abaixo ilustra um circuito alimentado por uma fon…
…te de corrente de 2 A, conectado a uma carga de 80Ω .xps
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Commits on Jun 27, 2023
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Uma fonte de tensão contínua Vf alimenta um circuito puramente resistivo, conforme mostrado na Figura abaixo. Aplicando-se os conceitos básicos das leis de Kirchoff, para que o valor da corrente I seja de 1A, o valor, em volts, da fonte de tensão Vf deverá ser de Alternativas A 50 B 125 C 250 D 425 E 620
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Aplicando-se os conceitos básicos das leis de Kirchoff, para que o valor da corrente I seja de 1A, o valor, em volts, da fonte de tensão Vf deverá ser de Alternativas A 50 B 125 C 250 D 425 E 620
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Commits on Jun 28, 2023
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O circuito elétrico resistivo mostrado na Figura a seguir, cujos valores resistivos estão impressos no circuito, é alimentado por uma fonte de tensão contínua Conectando-se os bornes de um amperímetro ideal, entre os pontos 1 e 2 do circuito, para realizar uma medida de corrente, o valor obtido, em mA, será Alternativas A 10 B 15 C 20 D 25 E 30
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