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Power Electronics

Power Electronics
The latching current of SCR is 20 mA. Its holding current will be

 23 mA.
 60 mA.
  10 mA.
 40 mA.

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Power Electronics
Which triggering is the most reliable?

  Forward voltage triggering.
  dV / dt triggering.
  Thermal triggering.
  Gate triggering.

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Power Electronics
The typical time of rising time lies between

  1 - 4 µs.
 90 - 100 µs.
 40 - 60 µs.
 10 - 20 µs.

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Power Electronics
A power semiconductor may undergo damage due to

 Low di/dt.
  High di/dt.
 High dv/dt.
 Low dv/dt.

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Power Electronics
SITH is also known as

 None of these.
  Filled controlled diode.
 Silicon controlled rectifier.
 Filled controlled rectifier.

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

Cut-off
Saturation
Negative resistance
None of these

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