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Power Electronics

Power Electronics
The latching current of GTO should be of order

 100 mA.
  500 mA.
 2 A.
 1 A.

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Power Electronics
What is used to protect the SCR from over current ?

 Voltage clamping device.
 Snubber circuit.
  CB and fuse.
 Heat sink.

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Power Electronics
Between the peak point and the valley point of UJT emitter characteristics we have ___________ region

None of these
Saturation
Negative resistance
Cut-off

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Power Electronics
A UJT has ___________.

Three pn junctions
One pn junction
None of these
Two pn junctions

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Power Electronics
Snubber circuit is used with SCR

 anti parallel.
 in series.
 either series or parallel.
  in parallel.

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Power Electronics
When the emitter terminal of a UJT is open, the resistance between the base terminal is generally ___________.

None of these
High
Low
Extremely low

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