Electric cars offer consumers a good alternative over gasoline-powered cars. Direct current (DC) powered cars are less expensive and can be over-driven for a short periods of time. A 100 V 20,000, W motor can be operated at 80,000 W for a short period of time and deliver four times its rated power. While this can be great for short bursts of acceleration, too much over driving causes the motor to heat up to the point where it can literally burn itself out. calculate the currents involved in operation at both power "modes."

Question

Electric cars offer consumers a good alternative over gasoline-powered cars. Direct current (DC) powered cars are less  expensive and can be over-driven for a short periods of time. A 100 V 20,000, W motor can be operated at 80,000 W for a short period of time and deliver four times its rated power. While this can be great for short bursts of acceleration, too much over driving causes the motor to heat up to the point where it can literally burn itself out. calculate the currents involved in operation at both power "modes."