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Power Electronics

Power Electronics
A thyristor will be triggered when Vg = 1.5 volt and Ig = 100 mA in the given figure. Calculate the value of R in ohm is

  37.14.
 3.714.
 65.
 60.

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Power Electronics
A diac has ___________ terminals.

None of these
Three
Two
Four

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

Low
Extremely low
High
None of these

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Power Electronics
The latching current of GTO should be of order

 100 mA.
 2 A.
  500 mA.
 1 A.

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Power Electronics
A UJT is sometimes called ___________ diode.

High resistance
Low resistance
Single-base
Double-base

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Power Electronics
If the anode current is 800 A, then the amount of current required to turn off the GTO is about

 20 A.
 400 A.
  200 A.
 600 A.

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