Question

The current through a light bulb connected across the terminals of a 120 V outlet is 0.50 A. At what rate does the bulb convert electric energy to light?

Answer 1

Answer:

The rate at which the bulb converts electric energy to light = 60 J/s

Step-by-step explanation:

The voltage across the terminals, v = 120 v

The current, I = 0.50 A

The rate at which the bulb convert electric energy to light is the power generated by the bulb

Power is given by the formula:

P = IV

Substitute I = 0.50A and v = 120 v into P = IV

P = 0.50 x 120

P = 60 J/s

The rate at which the bulb converts electric energy to light = 60 J/s