The starter motor of a car engine draws a current of 190 A from the battery. The copper wire to the motor is 6.97 mm in diameter and 1.10 m long. The starter motor runs for 0.939 s until the engine starts. How much charge (in C) passes through the starter motor? 178C is the correct answer. How far (in m) does an electron travel along the wire while the starter motor is on? Assume that the electron density of copper is 8.5 x1028 m-3.

The starter motor of a car engine draws a current of 190 A from the battery. The copper wire to the motor is 6.97 mm in diameter and 1.10 m long. The starter motor runs for 0.939 s until the engine starts. How much charge (in C) passes through the starter motor? 178C is the correct answer. How far (in m) does an electron travel along the wire while the starter motor is on? Assume that the electron density of copper is 8.5 x1028 m-3.

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter20: Electric Current, Resistance, And Ohm's Law

Section: Chapter Questions

Problem 9PE: (a) A defibrillator passes 12.0 A of current through the torso of a person for 0.0100 s. How much...

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