A parallel circuit consists of a 10 $\Omega$ resistor, a 20 $\Omega$resistor, and a 30 $\Omega$resistor. The circuit is connected to a 120 V source. If the voltage across the 30 $\Omega$ resistor is 120 V, how much voltage will be measured across the 10 $\Omega$resistor?
A) There is not enough information given to solve this problem.
B) 0 V
C) 80 V
D) 120 V

Question

A parallel circuit consists of a 10  $\Omega$ resistor, a 20  $\Omega$resistor, and a 30  $\Omega$resistor. The circuit is connected to a 120 V source. If the voltage across the 30  $\Omega$ resistor is 120 V, how much voltage will be measured across the 10  $\Omega$resistor?
A) There is not enough information given to solve this problem.
B) 0 V
C) 80 V
D) 120 V

Quizplus · Accepted Answer

In a parallel circuit, the voltage across each component is the same as the source voltage, regardless of the resistance values. Therefore, if the voltage across one resistor is 120 V, the voltage across the other resistors, including the 10 ohm resistor, will also be 120 V.

A Parallel Circuit Consists of a 10 Ω\OmegaΩ Resistor, a 20 Ω\OmegaΩ

A Parallel Circuit Consists of a 10 $\Omega$ Resistor, a 20 $\Omega$