Answer: A silver wire 2.6 mm in diameter transfers a

Chapter 25, Problem 2E

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QUESTION:

Problem 2E

A silver wire 2.6 mm in diameter transfers a charge of 420 C in 80 min. Silver contains 5.8 X 1028 free electrons per cubic meter. (a) What is the current in the wire? (b) What is the magnitude of the drift velocity of the electrons in the wire?

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QUESTION:

Problem 2E

A silver wire 2.6 mm in diameter transfers a charge of 420 C in 80 min. Silver contains 5.8 X 1028 free electrons per cubic meter. (a) What is the current in the wire? (b) What is the magnitude of the drift velocity of the electrons in the wire?

ANSWER:

Solution 2E

Step 1 of 3

Calculate the cross sectional area of the wire.

Here, r is the radius of the wire.

Substitute,  for .

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