DC Motors The starting resistance of a DC motor is generally 1000 Ω Low Infinitely large Around 500 Ω 1000 Ω Low Infinitely large Around 500 Ω ANSWER DOWNLOAD EXAMIANS APP
DC Motors In a dc machines the residual magnetism is of the order of 2 to 3 percent 20 to 25 percent 10 to 15 percent 50 to 75 percent 2 to 3 percent 20 to 25 percent 10 to 15 percent 50 to 75 percent ANSWER DOWNLOAD EXAMIANS APP
DC Motors The mechanical power developed by a shunt motor will be maximum when the ratio of back emf to applied voltage is 1.0 0.5 4.0 2.0 1.0 0.5 4.0 2.0 ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following in a dc motor, can sustain the maximum temperature rise? Commutator Armature winding Field winding Slip rings Commutator Armature winding Field winding Slip rings ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following can be used for controlling the speed of a dc motor? Thyristor Thermistor Thyratron Transistor Thyristor Thermistor Thyratron Transistor ANSWER DOWNLOAD EXAMIANS APP
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