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Power Electronics

Power Electronics
Figure shows two thyristors rated 400 A sharing a load current. Current through T2 is 180A. Current through T1 will be

 100 A.
 110 A.
  150 A.
 120 A.

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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
Extremely low
Low
High

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Power Electronics
A diac has ___________ pn junctions

None of these
Four
Three
Two

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Power Electronics
BCT is used for

 Low power phase control.
 High power current control.
  High power phase control.
 Low power current control.

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Power Electronics
The triac is ___________.

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

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Power Electronics
A diac is simply ___________.

A triac without gate terminal
A three junction device
None of these
A single junction device

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