If 1.0 a of current are passing through a wire how many electrons pass through a cross-section of the wire in 1.0 hours?

3.6*10²² electrons will pass through in 1 hour.

Explanation:

From Faraday's law of electricity,

Q = I T

Q = charge passed through = ?

I = current passing through = 1A

T = time the current is passed through = 1hour = 3600s

Q = I *T

Q = 1 * 3600

Q = 3600c

But 1 electron has a charge of 1.60 * 10-19c

How many electrons will have a charge of 3600C

X = (3600 *1) / 1.60 * 10-19

X = 3.6 * 10²² electrons.

3.6*10²² electrons will pass through in 1 hour.

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