The starter motor of a car engine draws an electric current


1) The starter motor of a car engine draws an electric current of 26.0 A from the battery. The copper wire to the motor is 4.60 mm in diameter and 1.34 m long. The starter motor runs for 0.85 s before the car engine starts up. How much electric charge passes during the starter motor?

2) What is the current density in the wire?

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Physics: The starter motor of a car engine draws an electric current
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