A 120-v motor has mechanical power output of 300 hp it is, Ask an Expert

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A 120-V motor has mechanical power output of 3.00 hp. It is 80.0% efficient inconverting power that it takes in by electrical transmission intomechanical power.

a) Find the current in the motor.
b) Find the energy delivered to the motor by electrical transmission in 3.20 h ofoperation.
c) If the electric company charges $0.160/kWh, what does it costto run the motor for 3.20 h?

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Category:- Physics
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