Electrical Machines
A DC series motor has which of the following characteristics?

 Can be started easily without load.
 Has a almost constant speed.
 Has its field winding consinting of thick wire and less no of turns.
 Has a poor torque.

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Electrical Machines
In the 3-phase induction motor, the resultant flux is of a constant nature and is

 3/2 times maximum value of flux due to any phase
 3 times maximum value of flux due to any phase
 1/2 times maximum value of flux due to any phase
 equal to φm, where φm is the maximum flux due to any phase

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