Potential Difference Example Problems

1. The potential difference between two parallel metal plates that are 50 mm apart is 10000 V. Find the force on an electron located between the plates.



2. The storage battery of a car is being charged by an alternator at the rate of 10 C/s. The potential difference across the alternator's terminals is 14 V and the alternator is 90% efficient. Find the power supplied by the car's engine to charge the battery.