A 50-W light bulb is in a socket supplied with 140 V.What is the current in the bulb?
A)0.36 A
B)2.8 A
C)90 A
D)7 000 A
E)3.8 A

Question

Quizplus · Accepted Answer

The current in the bulb can be calculated using the formula P = IV, where P is power (in watts), I is current (in amperes), and V is voltage (in volts). Rearranging the formula to solve for I gives I = P/V. Substituting the given values, I = 50W / 140V = 0.36 A.

A 50-W Light Bulb Is in a Socket Supplied with 140