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Power Electronics

Power Electronics
The device that does not have the gate terminal is ___________.

FET
SCR
Triac
Diac

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Power Electronics
What is used to protect a thyristor from high di / dt conditions?

 Fuse.
 Voltage clamping device.
  Inductor.
 Snubber circuit.

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Power Electronics
A thyristor can termed as

 Square wave switch.
  DC switch.
 Both a and B.
 AC switch.

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Power Electronics
A UJT has ___________.

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

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Power Electronics
If a latching current for the circuit shown in figure is 2 mA. Obtain the value of minimum width of the property turn ON the SCR?

 3.1 µs
 3.2 µs
 3 µs.
  3.3 µs

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Power Electronics
Under over voltage condition impedance offered by the voltage clamping device is

 infinity.
 moderate.
  low.
 high.

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