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Power Electronics

Power Electronics
The UJT may be used as ___________.

None of these
A rectifier
A sawtooth generator
Am amplifier

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Power Electronics
Practical way of obtaining static voltage equalization in series connected SCRs is by the use of

  resistors of the same value across each SCR.
 one resistor across the string.
 one resistor in series with each SCR.
 resistors of different values across each SCR.

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Power Electronics
After proper turn on of thyristor

  gate signal must be removed.
 gate signal is always present.
None of these
 gate signal should present but can be removed.

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Power Electronics
Gate circuit or triggering circuit of a thyristor is

 may be low power or high power circuit.
  lower power circuit.
 high power circuit.
 magnetic circuit.

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Power Electronics
Power transistor are type of

  All of above.
 IGBTs.
 MOSFETs.
 BJTs.

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Power Electronics
After peak point, the UJT operates in the ___________ region.

None of these
Negative resistance
Cut-off
Saturation

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