1. 8019. A 1-horsepower, 24-volt DC electric motor that is 80 percent efficient requires 932.5 watts. How much power will a 1-horsepower, 12-volt DC electric motor that is 75 percent efficient require? (Note: 1 horsepower = 746 watts) A. 932.5 watts. B. 1,305.5 watts. C. 994.6 watts.