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Whenever any polyphase induction motor is loaded | |
A. | induced e.m.f. decreases and frequency increases [Wrong Answer] |
B. | induced e.m.f. in the rotor remains constant [Wrong Answer] |
C. | induced e.m.f. in the rotor increases and its frequency also increases [Wrong Answer] |
D. | induced e.m.f. in the rotor increases and its frequency falls [Correct Answer] |