Ask or Answer

🏠 Home🏷️ Tags❔ Ask a Question✔️ Answer a QuestionUsers
176 views

Please log in or register to answer this question.

1 Answer

Answer :

In case the back e.m.f. and the speed of a D.C. motor are doubled, the torque developed by the motor will remain unchanged.

Like 0 like

Related Questions

409 views

Last Answer : The armature may burn if the back e.m.f. of a D.C. motor vanishes suddenly.

1 answer
127 views

Last Answer : If the speed of a D.C. shunt motor is increased, the back e.m.f. of the motor will increase.

1 answer
142 views

Description : As there is no back e.m.f. at the instant of starting a D.C. motor, in order to prevent a heavy current from flowing though the armature circuit?

Last Answer : As there is no back e.m.f. at the instant of starting a D.C. motor, in order to prevent a heavy current from flowing though the armature circuit a resistance is connected in series with armature.

1 answer
88 views

Description : In a 2 kW, 200 V, 1000 rpm. DC series motor the torque at full load was found to be 0.3 N -m. The torque at half full load in N -m is :

Last Answer : In a 2 kW, 200 V, 1000 rpm. DC series motor the torque at full load was found to be 0.3 N -m. The torque at half full load in N -m is : 0.075

1 answer
Show MoreAsk QuestionNext Page →