SSC SSC JE Electrical 2025 Mock Test Series (Paper 1 & Paper 2) Electrical Machines Three Phase Induction Motor
In the method of speed control of induction motor by inducing emf in the rotor circuit, if the injected voltage is in phase opposition to the induced rotor emf, then:
1
the rotor resistance decreases
2
the rotor resistance increases
3
the rotor reactance decreases
4
the rotor reactance increases