InterviewSolution
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InterviewSolution
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A metal wire carries of current of 1 ampere. How many electrons pass a paint in the wire in 1 second. ? |
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Answer» Solution :Charge in coulomb = current in ampere `xx` time (s) Since 1 F (96,500 coulombs) of electricity is carried out by 1 mole of electrons, i.e., `6.022 xx 10^(23)` electrons, therefore, 1 coulomb shall INVOLVE `6.022 xx 10^(23)//96500`, i.e, `6.24 xx 10^(18)` electrons. Thus, `6.24 xx 10^(18)` electrons pass a POINT in the WIRE in 1 SECOND. |
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