If four parallel 10 $\mathrm { k } \Omega$ resistors are connected in series with a single 20 $\mathrm { k } \Omega$ resistor and one of the parallel resistors opens, how does the voltage across the other parallel resistors change?
A) It increases.
B) It remains the same.
C) It decreases.

Question

Quizplus · Accepted Answer

When one of the parallel resistors opens, the total resistance of the parallel group increases, causing more voltage to drop across this group according to Ohm's law (V=IR), hence the voltage across the remaining parallel resistors increases.

If Four Parallel 10 kΩ\mathrm { k } \OmegakΩ Resistors Are Connected in Series with a Single 20

If Four Parallel 10 $\mathrm { k } \Omega$ Resistors Are Connected in Series with a Single 20