Determine the current in the motor

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A 120-V motor has mechanical power output of 3.00 hp. It is 88.0% efficient in converting power that it takes in by electrical transmission into mechanical power.

(a) Find the current in the motor.

A

(b) Find the energy delivered to the motor by electrical transmission in 3.90 h of operation.

MJ

(c) If the electric company charges $0.110/kWh, what does it cost to run the motor for 3.90 h?

$

Reference no: EM13254832

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