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Power Electronics

Power Electronics
If holding current of a thyristor is 2 mA then latching current should be

  0.004 A.
 0.009 A.
 0.002 A.
 0.01 A.

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

Gate voltage
None of these
Gate current
Breakover voltage

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Power Electronics
A triac is equivalent to two SCRs ___________.

In series
None of these
In inverse-parallel
In parallel

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Power Electronics
Example of a voltage clamping device

 fast acting fuse.
  metal oxide varistor.
 aluminium block.
 snubber circuit.

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

Triac
Transistor
UJT
Diac

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Power Electronics
The triac is ___________.

A four-terminal device
None of these
Not a thyristor
Like a bidirectional SCR

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