Question

A conductor carries a current of 0.1a. Calculate the amount of charge that passes through the cross section of the conductor in one minute. If electronic charge is 1.6 *10^19, how many electrons will flow in this time interval

Answer 1

Understanding:
1) Charge flown through the cross section of wire is given by Q = I t,
where I is current through that wire and t is time interval.
Let n be no. of electrons.

Total Charge flown, Q = 0.1 * 60s
=> n e = 6C
=> n * 1.6 * 10^(-19) = 6C
=> n = 6/1.6 * 10^(19)
=> n = 0.267 * 10^19
=> n = 2.67*10^(18)

Therefore, number of electrons passed through cross section of wire is 2.67 * 10^(18) .