A silver wire is 34 mm in diameter and is 57 cm long. If it transfers charge in 1.79 minutes, determine the magnitude of the current in the wire in kiloamperes. Silver contains 5.8 × 1028 free electrons per cubic meter.

A silver wire is 34 mm in diameter and is 57 cm long. If it transfers charge in 1.79 minutes, determine the magnitude of the current in the wire in kiloamperes. Silver contains 5.8 × 1028 free electrons per cubic meter.

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter9: Current And Resistance

Section: Chapter Questions

Problem 28P: An aluminum wire 1.628 mm in diameter (14-gauge) carries a current of 3.00 amps, (a) What is the...

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Microscopic view of current

In physics, the term current is expressed as the rate of flow of electric charges across the area per unit time (I=q/t). It propagates along in the direction of the motion of positive charges. When the current is caused by the motion of electrons, the direction of the current is opposite to the flow.

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