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Power Electronics

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

 1 KVA.
  2 KVA.
 100 KVA.
 500 VA.

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Power Electronics
Which of the following is used in heat sink?

 Silver.
 Iron.
 Carbon.
  Aluminium.

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Power Electronics
To meet high current demand we use SCRs in

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

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Power Electronics
Which statement is true for latching current ?

 Both C and D.
 It is related to conduction process of device.
 It is related to turn off process of the device.
  It is related to turn on process of the device.

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Power Electronics
The UJT may be used as ___________.

A rectifier
A sawtooth generator
Am amplifier
None of these

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Power Electronics
Typical range of thyristor turn OFF time is

 3 - 500 µs.
  3 - 100 µs.
 3 - 50 µs.
 3 - 10 µs.

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