Solution to task 368 from Chertov´s for extramural stud

Solution to task 368 from Chertov´s for extramural stud

368. When an electric motor is connected to a network with a voltage of U = 220 V, it consumes a current I = 5A. Determine the power consumed by the motor and its efficiency if the resistance R of the motor winding is 6 ohms.

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