If a parallel circuit has two resistors with values of 10 ohms and 25 ohms, the total resistance of the circuit is ____ ohms.
A) 250
B) 35
C) 7.14
D) .14

Question

Quizplus · Accepted Answer

In a parallel circuit, the total resistance is calculated as reciprocal of the sum of the reciprocals of the individual resistance values. So,

1/total resistance = 1/10 + 1/25

1/total resistance = (5+2)/50

1/total resistance = 7/50

Total resistance = 50/7 = 7.14 ohms.

If a Parallel Circuit Has Two Resistors with Values of 10