Electrical Machines A 4 pole 50 Hz induction motor is running at 1470 rpm. The frequency of rotor current is 0 Hz 1 Hz 5 Hz 50 Hz 0 Hz 1 Hz 5 Hz 50 Hz ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4 pole dynamo with wave wound armature has 51 slots contains 20 conductors in each slot. If induced emf 357 Volts and speed is 8500 rpm, flux per pole will be 1.2 mWb. 2.7 mWb. 1.4 mWb. 3.5 mWb. 1.2 mWb. 2.7 mWb. 1.4 mWb. 3.5 mWb. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC Shunt Motor if the load current increases then field flux decreases remains constant. increases. decreases. decreases remains constant. increases. decreases. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the field of a dc shunt motor gets opened while the motor is running, then the armature will oscillate about original speed as the mean speed armature current will drop motor will become slow. motor will attain dangerously high speed armature will oscillate about original speed as the mean speed armature current will drop motor will become slow. motor will attain dangerously high speed ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A short circuit test on a transformer gives copper loss at half load. copper loss at full load. copper loss at over load. copper loss at any load. copper loss at half load. copper loss at full load. copper loss at over load. copper loss at any load. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 6 pole lap connected DC generator with 480 conductors has armature resistance of 0.06 Ω. If the conductors are reconnected to from a wave winding other things remaining unchanged, the value of armature resistance will be 0.54 Ω. 0.01 Ω. 0.54 Ω. 0.06 Ω. 0.54 Ω. 0.01 Ω. 0.54 Ω. 0.06 Ω. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS