Description : What will happen if you increase the current in the motor?
Answer : Increasing current means increasing frequency of the motor because current is directly proportional to rotations of the motor rotor
Description : How can we increase the induced current?
Answer : Induced current can be increased by reducing no of windings on the secondary part compared to primary.
Description : For given applied voltage, with the increase in frequency of the applied voltage?
Answer : For given applied voltage, with the increase in frequency of the applied voltage eddy current loss will remain unchanged.
Description : Why does the speed of a DC shunt motor decrease as the load increases?
Answer : Because if the load is increasing then the torque must also be increase. If not then the speed of motor will decrease.
Description : Why inductor current lags inductor voltage ?
Answer : Inductor is a wire wounding structure having a core material it induces emf which is opposite to the voltage supply and proportional to rate of change of current so current lags the voltage in inductor