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 unexcited. maximum of the static torque with the phase winding excited. 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 unexcited. maximum of the static torque with the phase winding excited. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Iron losses in a DC machine are independent of variation in speed. load. speed and voltage. voltage. speed. load. speed and voltage. voltage. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a 3-phase, 4 pole, 50 Hz synchronous motor the frequency, pole number and the frequency are halved. The motor speed will be 75 rpm 3000 rpm 375 rpm 1500 rpm 75 rpm 3000 rpm 375 rpm 1500 rpm ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When Flemings right hand rule to find the direction of induced emf, the thumb points towards direction of motion of the conductor. opposite to the direction of motion of the conductor. direction of induced emf. direction of flux. direction of motion of the conductor. opposite to the direction of motion of the conductor. direction of induced emf. direction of flux. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Autotransformer makes effective saving on copper and copper losses, when its transformation ratio is equal to very low approx to one. less than one. greater than one. very low approx to one. less than one. greater than one. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Armature resistance control method is also called as-----------? constant torque control constant current control constant power control constant voltage control constant torque control constant current control constant power control constant voltage control ANSWER DOWNLOAD EXAMIANS APP
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