Electrical Machines In a stepper motor the detente torque means minimum of the static torque with the phase winding unexcited. minimum of the static torque with the phase winding excited. maximum of the static torque with the phase winding excited. maximum of the static torque with the phase winding unexcited. minimum of the static torque with the phase winding unexcited. minimum of the static torque with the phase winding excited. maximum of the static torque with the phase winding excited. maximum of the static torque with the phase winding unexcited. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines No load test on induction motor is conducted to find which of the following losses? Stator core loss All of these Stator copper loss Rotational loss Stator core loss All of these Stator copper loss Rotational loss ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4 pole, 3-phase induction motor is running at 4% slip at full load. If the speed of the motor is 720 rpm, the supply frequency is 50 Hz 60 Hz 40 HZ 25 Hz 50 Hz 60 Hz 40 HZ 25 Hz ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The speed of a DC series motor is Proportional to field current. Inversely proportional to the armature current. Proportional to the armature current. Proportional to the square of the armature current. Proportional to field current. Inversely proportional to the armature current. Proportional to the armature current. Proportional to the square of the armature current. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The torque developed in IM is nearly proportional to V. V2. 1 / V. 1 / V2. V. V2. 1 / V. 1 / V2. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines On which of the following factor/factors the speed of a DC motor depends upon? Field flux. Armature current. All of these. Applied voltage. Field flux. Armature current. All of these. Applied voltage. ANSWER DOWNLOAD EXAMIANS APP
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