DGVCL Exam Paper (11-12-2011)
All the peripheral devices connected to a computer require power to work. Which of the following voltages is required for the motherboard to work?

Negative cycle of sine wave
AC
Positive cycle of sine wave
DC

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DGVCL Exam Paper (11-12-2011)
The purpose of embedding the damper winding in the pole face of a synchronous motor is to

Eliminate losses on account of fair friction
Reduce bearing friction
Eliminate hunting and provide adequate starting torque
Reduce winding losses

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