Answer:
Q = 450 C
Step-by-step 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 :

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