The starter motor runs for 075 s before the car engine

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The starter motor of a car engine draws an electric current of 20.0 A from the battery. The copper wire to the motor is 4.30 mm in diameter and 1.49 m long. The starter motor runs for 0.75 s before the car engine starts up. How much electric charge passes through the starter motor?

What is the current density in the wire?

Reference no: EM13629800

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