Question

Power in a light bulb is voltage times current. A 10 ohm light bulb is connected to a 12 v battery. What is the power of the light bulb? *

120 W
12.2 W
10 W
1.2 W
0.83 W
14.4 W

Answer 1

=14.4Watts

Step-by-step explanation:

Power in a light bulb is calculated by the use of the following formula: P=VI

For the provided scenario, the current will be calculated as follows:

I=V/R

=12V/10Ω

=1.2A

Therefore P=12V×1.2A

=14.4Watts