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?

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

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DGVCL Exam Paper (11-12-2011)
Distribution transformers have good all day efficiency due to

Low voltage
Low copper as well as iron loss
Low iron loss
Low copper loss

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