# Q.Sparkless commutation can be achieved by employing

• AInterpoles
• BCompensating winding
• CHigh resistance carbon brushes
• DAny one or more of the above methods

Any one or more of the above methods

Hints :

Sparkless commutation can be achieved by employing Interpoles, Compensating winding, High resistance carbon brushes.

Torque developed in an electromechanical energy conversion device depends upon

In electromechanical energy conversion devices (e.g generators and motors) a small air gap is left between the stator and the rotor in order to