How the unidirectional torque produced in dc motor

Question Posted / srinivas

2 Answers
8500 Views
CGL, Sail, I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

How the unidirectional torque produced in dc motor..

Answer / sai bhargava

Dc machimes are designed like that angle betwean the stator flux and rotor flux is 90 degree to produce unidirectional torque

Is This Answer Correct ?

4 Yes

2 No

How the unidirectional torque produced in dc motor..

Answer / umesh

The torque formula for dc motor is T=k(current * flux)
The commutator with brush converts the dc into ac which produces alternating flux.It means both armature current and flux are positive or negative at the same time.

Is This Answer Correct ?

1 Yes

2 No

Post New Answer

More Electrical Engineering Interview Questions

What are your future plans for the company if permanently employed?

0 Answers

why transformer rating is expressed in kva.

4 Answers Electrosteel, L&T,

why we are using panel space heaters in different control schemes????

3 Answers Mecon,

What is earth fault?

3 Answers

Why neutral has to switch on-off with phase in TN IT TT systems i.e neutral should be taken as fourth pole

1 Answers

what is residual current....

1 Answers

Define over current & earth fault ?how its functioning ?

1 Answers

why transformer has more efficiency compare to rotating machine?

3 Answers

How do you think they do earthing or grounding in ships and aeroplanes?

9 Answers

Why MS rod or flat are used in stead of GI rod or flat in switchyard earth mat ?

2 Answers

For fixed primary voltage how does secondary terminal voltage of a transformer change if the pf of inductive load is raised from 0.7 to 0.9 with load current remaining fixed ?

1 Answers GATE,

ITI r/tv trade APPLY (J.T.O VACANCEY) ALSO INCLUD AITT ELECTRONIC,WRITEEN XAM DONE 23.03.10 BUT NO RESPONCE WHY ANATHER ID gopal_gh007@rediffmail.com

0 Answers KBC, wbsedcl,

For more Electrical Engineering Interview Questions Click Here