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DC Motors

DC Motors
The starting resistance of a DC motor is generally

1000 Ω
Around 500 Ω
Infinitely large
Low

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DC Motors
A dc series motor is that which

Has its field winding consisting of thick wire and less turns
Has almost constant speed
Has a poor torque
Can be started easily without load

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DC Motors
The speed of a series motor at no load is

Infinity
2000 rpm
1000 rpm
4000 rpm

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DC Motors
By putting controller resistance in series with the armature of a dc motor, we can obtain speeds

Above the normal speed only
Below the normal speed only
None of the listed here
Above as well as below the normal speed

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DC Motors
The compensating winding is connected in

Parallel with armature
Series-parallel with armature
None of the listed here
Series with armature

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DC Motors
At the instant of starting when a D.C. motor is put on supply, it behaves like

None of these
A highly resistive circuit
A capacitive circuit
A low resistance circuit

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MORE MCQ ON DC Motors

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