Electrical Machines If terminal voltage of one 1000 rpm shunt motor is reduced to half the speed of the motor will be 500 rpm 250 rpm 2000 rpm 1000 rpm 500 rpm 250 rpm 2000 rpm 1000 rpm ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines 1 KVA, 230 V, 50 Hz, single phase transformer has an eddy current loss of 30 watts. The eddy current loss when the transformer is excited by a dc source of same voltage will be zero watt more than 30 W less than 30 W 30 W zero watt more than 30 W less than 30 W 30 W ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Flux density under leading pole tips in case of generator will either increase or decrease decrease increase None of these either increase or decrease decrease increase None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Direct axis reactance is defined as the ratio of Vmax to Imin Vmin to Imin Vmin to Imax Vmax to Imax Vmax to Imin Vmin to Imin Vmin to Imax Vmax to Imax ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a 3-phase, 4 pole, 50 Hz synchronous motor the frequency, pole number and the frequency are halved. The motor speed will be 3000 rpm 75 rpm 1500 rpm 375 rpm 3000 rpm 75 rpm 1500 rpm 375 rpm ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In double cage induction motor, the outer cage offers low resistance and low reactance. low resistance and high reactance. high resistance and high reactance. high resistance and low reactance. low resistance and low reactance. low resistance and high reactance. high resistance and high reactance. high resistance and low reactance. ANSWER DOWNLOAD EXAMIANS APP
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