Question

A current of 5.0A shows through an automobile headlight. How many coulombs of charge show through the headlamp in 2.00hrs

Answer 1

Charge is given by

$$Q=It$$

where $I$ is the current and $t$ is the time.

Given $I=5.0\ A\ and \ t=2.00 hrs = 7200\ s$

$$\therefore Q=2\times 7200\ C = 1.44\times 10^4\ C$$

Thus the charge flowing through the headlamp is $1.44\times 10^4\ C$