AC current is not always smaller than DC.
Description : Why poles of dc machine are laminated?
Answer : Poles of DC machines are laminated to reduce the eddy current losses in the poles.
Description : Explain why potential difference is necessary to produce current in a circuit.
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
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 : Even at no-load, a transformer draws current from the mains. Why?