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InterviewSolution
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A metal wire carries a current of 4 ampere. How many electrons pass through a point in the wire in one second? |
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Answer» SOLUTION :Total charge passed in `1` sec. `= 4 xx 1` `= 4` coulomb `(because Q = i xx t)` `:. 1` FARADAY or `96500 C` current CARRIED by `= 6.023 xx 10^(23)` electrons `:. 4` coulomb current carried by `= (6.023 xx 10^(23) xx 14)/(96500)` `= 2.5 xx 10^(9)` electrons |
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