Answered: What is the current in a wire

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter28: Current And Resistance

Section: Chapter Questions

Problem 65PQ

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Question

What is the current in a wire in which 3.62x10²⁰ electrons pass a single point every 8.79 seconds? Report your answer with three significant digits. (e = 1.602x10^-19 C)

Expert Solution

Step 1

Given:

Number of electrons is $N = 3.62 \times 10^{20}$

The $N$ number of electrons passes a certain point in time $t = 8.79 s$

The magnitude of charge on one electron is $q_{e} = 1.602 \times 10^{- 19} C$

Find:

Current flowing through the given wire.

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