A current of 0.50A is maintained through a thin silver wire. How long will it take for 1.5×1021 free electrons to cross any cross–section of the wire?
(i) First, calculate the total charge corresponding to 1.5×1021 electrons.
(ii) Hence, determine the required time for this charge to pass through the given cross–section. (Use e=1.6×10−19C.)