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In a circuit, what happens to the total current if you add another resistor in parallel?198 answeredIt increases It decreases It remains the same. It depends on the resistor values.

Question

In a circuit, what happens to the total current if you add another resistor in parallel?198 answeredIt increases It decreases It remains the same. It depends on the resistor values.

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Solution

Para responder a esta pregunta, es importante entender cómo funcionan los circuitos en paralelo. Aquí están los pasos para llegar a la respuesta correcta:

  1. Entender el concepto de resistores en paralelo: En un circuito en paralelo, los resistores están conectados de tal manera que cada uno tiene el mismo voltaje a través de él.

  2. Ley de Ohm: La ley de Ohm establece que I=VR I = \frac{V}{R} , donde I I es la corriente, V V es el voltaje y R R es la resistencia.

  3. Resistencia equivalente en paralelo: La resistencia total o equivalente (Req R_{eq} ) de resistores en paralelo se calcula usando la fórmula: 1Req=1R1+1R2+1R3+ \frac{1}{R_{eq}} = \frac{1}{R_1} + \frac{1}{R_2} + \frac{1}{R_3} + \ldots Al agregar otro resistor en paralelo, la resistencia equivalente del circuito disminuye.

  4. Efecto en la corriente total: Dado que la resistencia equivalente disminuye al agregar otro resistor en paralelo, y asumiendo que el voltaje del circuito permanece constante, la corriente total en el circuito aumentará. Esto se debe a que, según la ley de Ohm, una menor resistencia con el mismo voltaje resulta en una mayor corriente.

Por lo tanto, la respuesta correcta es: Aumenta.

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