DC Motors The starting resistance of a DC motor is generally Around 500 Ω Low Infinitely large 1000 Ω Around 500 Ω Low Infinitely large 1000 Ω ANSWER DOWNLOAD EXAMIANS APP
DC Motors In a dc machines the residual magnetism is of the order of 10 to 15 percent 20 to 25 percent 2 to 3 percent 50 to 75 percent 10 to 15 percent 20 to 25 percent 2 to 3 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? Field winding Armature winding Commutator Slip rings Field winding Armature winding Commutator Slip rings ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following can be used for controlling the speed of a dc motor? Transistor Thyratron Thermistor Thyristor Transistor Thyratron Thermistor Thyristor ANSWER DOWNLOAD EXAMIANS APP
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