Question

Calculate no. Of electrins constituting aone coulomd of charge

Answer 1

The charge on an electron is negative and it is -1.6⨯10-19 coulomb therefore, 1 C charge is carried by 1/ (-1.6⨯10-19) = 6.25 ⨯ 1018 electrons. Hence if 1 A current flows through a conductor, it implies that 6.25 ⨯ 1018electrons pass per a second across the cross section of the conductor.

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