How the unidirectional torque produced in dc motor

Question Posted / srinivas

2 Answers
9929 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 is the formula of knowing the clabe size on any load?

1 Answers JSW, Scan Steel,

Why field rheostat is kept in minimum position while armature rheostat at maximum position?

0 Answers

if i am in front of transmission line how to know that current direction without any equipment

0 Answers

Why 9KV surge arrester having 7.65KV of MCOV?

0 Answers

How to calculate per unit impedance of transformer?

0 Answers

there is a # KVA Transformer of 11 KV/440V, in simple(not use formuia) how can you calculate it's HT & LT side current.

5 Answers Construction, wbsedcl,

What should be value of Circuit breaker operating time and tripping time?

5 Answers

What is phase angle? and what is importance to measure it?

2 Answers

If you see the HRC fuse name plate. Its shown ampere rating shown which is in many KA (like 80KA and so on). any body explain what is meaning of this value?

7 Answers

why the electrolyte level in lead acid battery is maintained 2.5 cms above electrodes?

0 Answers

What is triac?

3 Answers NTPC,

why we use bare wire in high tension power instead of using insulated wire?

2 Answers

For more Electrical Engineering Interview Questions Click Here