As resistors are disconnected from a parallel circuit,______ A) I_T increases and R_T decreases B) I_T decreases and R _T decreases C) I_T increases and R_T increases D) I_T decreases and R_T increases

Question

Quizplus · Accepted Answer

In a parallel circuit, removing a resistor will decrease the total resistance of the circuit, which means that the total current in the circuit will increase according to Ohm's Law (I=V/R). Therefore, I_T will decrease. Additionally, the formula for the total resistance of a parallel circuit is 1/Rtotal = 1/R1 + 1/R2 + ... + 1/Rn, which means that as resistors are removed, the total resistance will decrease and R_T will increase. Therefore, D is the correct choice.

As Resistors Are Disconnected from a Parallel Circuit,______