Question

During the time that a light bulb was on, it converted 54 kJ of energy into
light energy and heat energy. The light bulb was plugged into a 120 V outlet.
What amount of charge, in coulombs, passed through the light bulb while it was
on?

Answer 1

Answer:

Q = 450 C

Explanation:

Given that,

A light bulb is converted 54 kJ of energy into  light energy and heat energy.

The light bulb was plugged into a 120 V outlet.

We need to find the charge passed through the light bulb while it was  on.

We know that the relation between voltage, current and energy is given by :

$Q=\dfrac{E}{V}\\\\Q=\dfrac{54\times 10^3}{120}\\\\Q=450\ C$

So, 450 C of charge passed through the light bulb.