Question
Asked Oct 7, 2019
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The starter motor of a car engine draws a current of 190 A from the battery. The copper wire to the motor is 4.00 mm in diameter and 1.2 m long. The starter motor runs for 0.920 s until the car engine starts. How much charge passes through the starter motor?

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Expert Answer

Step 1

The formula for the current flowing through a wire is;

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ΔΟ I Qs-Q t,- I=Q-0 t-0

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Step 2

Substitute the known v...

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Q (190 A) (0.920 s =174.8 C

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