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Power Electronics

Power Electronics
The latching current of SCR is 20 mA. Its holding current will be

 23 mA.
 60 mA.
  10 mA.
 40 mA.

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Power Electronics
A thyristor can termed as

  DC switch.
 AC switch.
 Both a and B.
 Square wave switch.

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Power Electronics
The device that exhibits negative resistance region is ___________.

Diac
UJT
Transistor
Triac

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

  2 KVA.
 100 KVA.
 1 KVA.
 500 VA.

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Power Electronics
Thermal voltage VT can be given by

 qT/K.
 KT/q.
  Kq/T.
 (K2/q)(T + 1/T - 1).

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Power Electronics
To meet high current demand we use SCRs in

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

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