Question

A 5 V battery delivers a steady current of 1.5 A for a period of 2 h. The total charge that has passed through the circuit is \(\underline{\hspace{2cm}}\) Coulombs.

Hint:

To calculate the total charge, multiply the current by the total time (in seconds).

Answer 1

Correct Answer: 10800

The formula for charge \( Q \) is given by: \[ Q = I \times t \] where \( I \) is the current (in amperes) and \( t \) is the time (in seconds).
Given:
- \( I = 1.5 \, A \)
- \( t = 2 \, \text{hours} = 2 \times 3600 = 7200 \, \text{seconds} \)
Now, we can calculate the total charge: \[ Q = 1.5 \times 7200 = 10800 \, \text{Coulombs} \] Thus, the total charge is \( \boxed{10800 \, \text{Coulombs}} \).