In which of the following device the generated emf and armature current are in the opposite directions?

Related Mcqs:

In D.C. shunt motors as load is reduced__________________?

A. the speed will increase abruptly B. the speed will increase in proportion to reduction in load C. the speed will remain almost/constant D. the speed will reduce...

In a D.C. series motor, if the armature current is reduced by 50%, the torque of the motor will be equal to

A. 100% of the previous value B. 50% of the previous value C. 25% of the previous value D. 10% of the previous value E. none of the above...

For which of the following applications a D.C. motor is preferred over an A.C. motor ?

A. Low speed operation B. High speed operation C. Variable speed operation D. Fixed speed operation...

Which of the following motors is most suitable for signalling devices and many kinds of timers ?

A. D.C. shunt motor B. D.C. series motor C. Induction motor D. Reluctance motor...

In a DC motor the inter-pole winding is connected in________________?

A. series with field winding B. series speed armature winding C. parallel big field winding D. parallel with armature winding...