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A sinusoidal voltage of 5 Hz is applied to the field of a shunt generator. The armature voltage wave will be of 5 Hz.

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The e.m.f. induced in the armature of a shunt generator is 600 V. The armature resistance is 0.1 ohm. If the armature current is 200 A, the terminal voltage will be?

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The e.m.f. induced in the armature of a shunt generator is 600 V. The armature resistance is 0.1 ohm. If the armature current is 200 A, the terminal voltage will be 580 V.

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A cumulatively compounded long shunt generator when operating as a motor would be differentially compounded long shunt.

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A shunt generator running at 1000 r.p.m. has generated e.m.f. as 200 V. If the speed increases to 1200 r.p.m., the generated e.m.f. will be nearly?

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A shunt generator running at 1000 r.p.m. has generated e.m.f. as 200 V. If the speed increases to 1200 r.p.m., the generated e.m.f. will be nearly 240 V.

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If a D.C. generator fails to build up the probable cause could not be field resistance less than the critical resistance.

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D.C. generator generally preferred for charging automobile batteries is long shunt compound generator.

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In a level compounded D.C. generator, full load terminal voltage is equal to no-load terminal voltage.

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Answer :

In a D.C. generator in case the resistance of the field winding is increased, then output voltage will decrease.

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If a self excited d.c. generator after being installed, fails to build up voltage on its first trial run, the first thing to do is (a) reverse the field winding connections (b) increase the field resistance (c) decrease the speed of prime mover (d) increase the speed of prime mover  

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In over compounded generator, full load terminal voltage is more than no load terminal voltage.

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