Electrical Machines If the excitation of the synchronous generator fails, it acts as a/an induction generator. synchronous generator. synchronous motor. induction motor. induction generator. synchronous generator. synchronous motor. induction motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In synchronous motor the torque is proportional to P² 1/P² 1/P Power P P² 1/P² 1/P Power P ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Normally for the design of transformer the ambient temperature is taken as 45°C. 27°C. 32°C. 35°C. 45°C. 27°C. 32°C. 35°C. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines With the increase in speed of a DC motor both back emf as well as line current fall. both back emf as well as line current increase. back emf falls and line current increases. back emf increases but line current falls. both back emf as well as line current fall. both back emf as well as line current increase. back emf falls and line current increases. back emf increases but line current falls. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The speed of rotating magnetic field of 8 pole 50 Hz induction motor is 3000 rpm 1500 rpm 750 rpm 1000 rpm 3000 rpm 1500 rpm 750 rpm 1000 rpm ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When flux density is constant in a transformer, hysteresis loss varies as f² V² V f f² V² V f ANSWER DOWNLOAD EXAMIANS APP
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