Question

What will be the effect of opening of field of a DC shunt motor while motor is running?

a.

The speed of motor will be reduced

b.

The armature current will reduce

c.

The motor will attain dangerously high speed

d.

The motor will continue to constant speed

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Answer: (c).The motor will attain dangerously high speed

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Q. What will be the effect of opening of field of a DC shunt motor while motor is running?

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