Electrical Machines The back emf produced in a dc motor depends on none of these. P and Z. P. Z. none of these. P and Z. P. Z. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The rotor of a three phase induction motor has an impedance of 0.4 + j4 ohm per phase at standstill the maximum torque occurs at a slip of _____________. 25 %. 50 %. 15 %. 10 %. 25 %. 50 %. 15 %. 10 %. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines DC Shunt Motor has disadvantage(s) of not suitable for rapidly changing loads. constant speed. less expensive. none of above. not suitable for rapidly changing loads. constant speed. less expensive. none of above. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Ward Leonard control provides speed control below rated speed. in one direction only. above rated speed. in both direction. below rated speed. in one direction only. above rated speed. in both direction. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC series motor is accidentally connected to single phase ac supply voltage. The torque produced will be oscillating None of these steady and unidirectional pulsating and unidirectional oscillating None of these steady and unidirectional pulsating and unidirectional ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines It is advisable to start a DC series motor with some load to Avoid sparking. Limit the flux. Limit the speed. Limit the current. Avoid sparking. Limit the flux. Limit the speed. Limit the current. ANSWER DOWNLOAD EXAMIANS APP
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