DC Motors The starting resistance of a DC motor is generally Around 500 Ω 1000 Ω Infinitely large Low Around 500 Ω 1000 Ω Infinitely large Low ANSWER DOWNLOAD EXAMIANS APP
DC Motors In a dc machines the residual magnetism is of the order of 50 to 75 percent 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 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 4.0 0.5 1.0 2.0 4.0 0.5 1.0 2.0 ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following in a dc motor, can sustain the maximum temperature rise? Commutator Field winding Armature winding Slip rings Commutator Field winding Armature winding Slip rings ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following can be used for controlling the speed of a dc motor? Transistor Thermistor Thyratron Thyristor Transistor Thermistor Thyratron Thyristor ANSWER DOWNLOAD EXAMIANS APP
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