engineering recuitment UPCL AE (E&M) 2021 Mock Test Electrical Machines DC Motor

A 440 V shunt motor has armature resistance of 0.8 Ω and field resistance of 200 Ω. Determine the back emf when giving an output of 7.46 kW at 85 per cent efficiency.

1

435.8 V

2

445.8 V

3

415.8 V

4

425.8 V

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