Question

The starter motor of a car engine draws an electric current of 16.0 A from the battery. The copper wire to the motor is 5.00 mm in diameter and 1.52 m long. The starter motor runs for 0.95 s before the car engine starts up. How much electric charge passes through the starter motor?

Answer 1

Answer:

The electric charge passes is 15.2 C.

Explanation:

The electric current is drawn from a battery = 16 A

The diameter of copper wire is = 5 mm

The length of copper wire is = 1.52 m

Running time of starter motor before the start of car engine = 0.95 s

Therefore, the current 16 A passes through the copper wire for 0.95 seconds.

The calculation of electric charge passes:

$Charge = i \times t$

$= 16 \times 0.95$

$= 15.2 C$