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Power Electronics

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

  10 mA.
 60 mA.
 40 mA.
 23 mA.

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

Both positive and negative
Only negative
None of these
Only positive

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Power Electronics
BCT is used for

  High power phase control.
 High power current control.
 Low power current control.
 Low power phase control.

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

 1 KVA.
 100 KVA.
 500 VA.
  2 KVA.

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Power Electronics
Thermal voltage VT can be given by

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

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Power Electronics
The latching current of GTO should be of order

 2 A.
  500 mA.
 1 A.
 100 mA.

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