Suppose that wire A and wire B are made of different metals and are subjected to the same electric field in two different circuits. Wire B has 6 times the cross-sectional area, 1.3 times as many...

Suppose that wire A and wire B are made of different metals and are subjected to the same electric field in two different

circuits. Wire B has 6 times the cross-sectional area, 1.3 times as many mobile electrons per cubic centimeter, and 4 times

the mobility of wire A. In the steady state, 2 × 1018 electrons enter wire A every second. How many electrons enter wire B

every second?