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DC Motors
2

DC Motors MCQ with Answers

2) Which rule is used to find out direction of rotation of DC motor?

Flemings left hand rule

Flemings right hand rule

Cork screw rule

End rule

Answer is:

Flemings left hand rule

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Related DC Motors MCQ with Answers

3) Which type of magnetic field is necessary for working of DC motor?

Pulsating magnetic field

Alternating magnetic field

Rotating magnetic field

Uniform magnetic field

Answer is:

Uniform magnetic field

4) What is the value of angle between fingers in Flemings left hand rule?

Right angles to each other

40 degrees to each other

45 degrees to each other

60 degrees to each other

Answer is:

Right angles to each other

5) What is the unit of torque in DC motor?

Joule

Newton

Newton - metre

Watt

Answer is:

Newton - metre

6) Which represent the turning or twisting moment of force in an axis?

Centrifugal force

Speed

Twisting

Torque

Answer is:

Torque

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