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A current of 7.5 A is maintained in wire...

A current of `7.5 A` is maintained in wire of `45 s`. In this time
(a) how much charge and
(b) how many electrons flow through the wire?

Text Solution

Verified by Experts

The correct Answer is:
A, B, C
a. `:' q=it=(7.5)(45)=337.5C`
b. `b=q/e = 337.5/(1.6xx10^-19)`
`=2.1xx10^21`
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