The motor is supplied with a current of 12.5 A at a voltage at the terminals of 110 V. Calculate the net power
| March 21, 2021 | education
The motor is supplied with a current of 12.5 A at a voltage at the terminals of 110 V. Calculate the net power of the motor if the efficiency of the motor is 58%.
Initial data: I (current supplied to the motor) = 12.5 A; U (terminal voltage) = 110 V; η (motor efficiency) = 58% (0.58).
The useful power of the motor is expressed from the formula for calculating the efficiency: η = Np / Nc = Np / (U * I), whence Np = U * I * η.
Calculation: Np = 110 * 12.5 * 0.58 = 797.5 W.
Answer: The net power of the motor is 797.5 W.
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