If the back emf in the DC motor suddenly disappears, the motor will

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Current versus time graph for an ideal commutation is a

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Which of these won't prevent a self- excited shunt generator from building its full voltage?

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The running speed of a DC series motor is basically determined by -

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In an NPN transistor P-region is called

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A DC generator beyond critical field resistance will generated-

Correct! Wrong!

A DC motor runs at full load at 1725 rpm and without load at 1775 rpm. The regulation of speed is

Correct! Wrong!

If spacing between conductor increase the corona effect -

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The DC generator has poorest V.R is

V.R=Voltage Regulation
Show hint
Correct! Wrong!

The annual deposit in the sinking fund method compared to the straight line method is

Correct! Wrong!

Inverse time current relay are use for protection of -

Correct! Wrong!

Main A.C. power is converted into D.C. power for _______ .

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The DC motor speed can be controlled by changing

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The transformer that does not provide electric isolation is

Correct! Wrong!

An 8-pole duplex lap winding will have _______ parallel paths.

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