When a 60-watt light bulb is connected to a 120-volt source the current in the light bulb is
A)0)25 A.
B)0)5 A.
C)2 A.
D)4 A.
E)more than 4 A.

Question

Quizplus · Accepted Answer

Using Ohm's Law (V = IR), we can solve for the current:
I = V/R
Since the power (60 W) and voltage (120 V) are given, we can use the equation:
P = IV 
where P is power, I is current, and V is voltage. Rearranging the equation to solve for the current (I), we get:
I = P/V = 60/120 = 0.5 A. 
Therefore, the answer is B) 0.5 A.

When a 60-Watt Light Bulb Is Connected to a 120-Volt