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Power Electronics

Power Electronics
A diac is turned on by ___________.

None of these
A breakover voltage
Gate current
Gate voltage

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Power Electronics
A triac has ___________ semiconductor layers.

Four
Five
Two
Three

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Power Electronics
The normal way to turn on a diac is by ___________.

Gate voltage
Breakover voltage
None of these
Gate current

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Power Electronics
A step up chopper has input voltage 110 V and output voltage 150 V. The value of duty cycle is

  0.32.
  0.27.
  0.67.
  0.45.

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Power Electronics
SCRs are used in series to meet

 low current demand.
 low voltage demand.
 high current demand.
  high voltage demand.

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Power Electronics
The V-I characteristics for a triac in the first and third quadrants are essentially identical to those of ___________ in its first quadrant

SCR
UJT
Transistor
None of these

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