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Power Electronics

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

Gate current
None of these
Breakover voltage
Gate voltage

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Power Electronics
Practical way of obtaining static voltage equalization in series connected SCRs is by the use of

 one resistor in series with each SCR.
 resistors of different values across each SCR.
 one resistor across the string.
  resistors of the same value across each SCR.

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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
SITH is also known as

 Silicon controlled rectifier.
  Filled controlled diode.
 Filled controlled rectifier.
 None of these.

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Power Electronics
Thyristor can be protected from over voltages by using

 fuse.
 snubber circuit.
  voltage clamping device.
 heat sink.

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Power Electronics
Power transistor are type of

 BJTs.
  All of above.
 MOSFETs.
 IGBTs.

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