A light bulb operating at a dc voltage of 120 V has a power rating of 60 W.What is the current through this bulb?
A)1.5 A
B)2.5 A
C)0.50 A
D)2.0 A
E)1.0 A

Question

Quizplus · Accepted Answer

We can use the formula P=VI, where P is power, V is voltage, and I is current. Rearranging this formula to solve for I, we get I=P/V. Substituting the given values of P=60 W and V=120 V, we get I=60/120 = 0.5 A. Therefore, the correct answer is choice C.

A Light Bulb Operating at a Dc Voltage of 120