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Power Electronics

Power Electronics
Maximum power loss occurs during

  rise time.
 all.
 spread time.
 delay time.

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Power Electronics
A diac is simply ___________.

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

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Power Electronics
A step up chopper has input voltage 110 V and output voltage 150 V. The value of duty cycle is

  0.32.
  0.27.
  0.67.
  0.45.

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Power Electronics
BCT is used for

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

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Power Electronics
A power semiconductor may undergo damage due to

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

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Power Electronics
A diac is ___________ switch

An c.
A mechanical
A d.c.
None of these

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