Electrical Machines A 3 phase stepper motor has 6 stator poles and 4 rotor poles, then find the step angle? 30° 60° 10° 45° 30° 60° 10° 45° ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What type of connection is made in between the inter-pole and the field winding? None of the options. Compound. Series. Parallel. None of the options. Compound. Series. Parallel. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The current drawn by the armature of DC motor is directly proportional to The torque required. The voltage across the terminals. The speed of motor. None of above. The torque required. The voltage across the terminals. The speed of motor. None of above. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A cumulatively compounded dc motor delivers rated load power at rated speed. If the series field is short-circuited, then Ia increases and ωm decreses Ia remains constant but ωm increase both decrese both armature current Ia and speed ωm increase Ia increases and ωm decreses Ia remains constant but ωm increase both decrese both armature current Ia and speed ωm increase ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the back emf in DC motor vanishes suddenly the motor will start haunting. run at very high speed. run at very low speed. burn. start haunting. run at very high speed. run at very low speed. burn. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Field winding of a DC series motor is usually provided with thick wire to reduce the insulation of materials. in order to reduce eddy current to provide large flux. as it carries large load current. to provide large flux. to reduce the insulation of materials. in order to reduce eddy current to provide large flux. as it carries large load current. to provide large flux. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS