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Power Electronics

Power Electronics
A triac is a ___________ switch

Unidirectional
Mechanical
None of these
Bidirectional

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Power Electronics
Power transistor are type of

 BJTs.
 MOSFETs.
 IGBTs.
  All of above.

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Power Electronics
A triac can pass a portion of ___________ half-cycle through the load.

Only positive
Both positive and negative
Only negative
None of these

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Power Electronics
COOLMOS device can be used in application up to power range of

 1 KVA.
 500 VA.
  2 KVA.
 100 KVA.

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Power Electronics
A power MOSFET has three terminals called

 Drain, source and base.
 Collector, emitter and base.
  Drain, source and gate.
 Collector, emitter and gate.

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Power Electronics
To meet high current demand we use SCRs in

 both B and C.
  parallel connection.
 anti parallel connection.
 series connection.

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