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Power Electronics

Power Electronics
Switching frequency of SITH is

 5 KHz.
 60 KHz.
 10 KHz.
  100 KHz.

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Power Electronics
A triac has ___________ semiconductor layers.

Five
Three
Four
Two

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

 60 mA.
 23 mA.
  10 mA.
 40 mA.

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Power Electronics
A diac has ___________ semiconductor layers

None of these
Four
Three
Two

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Power Electronics
Leakage current flows through the thyristor in

 forward conduction mode.
  both forward and reverse blocking mode.
 forward blocking mode.
 reverse blocking mode.

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Power Electronics
For an SCR gate cathode characteristic is a straight line of 130. For triggered source volume of 15 V and allowable gate power dissipation of 0.5 W compute the gate source resistance?

  111.9 ohm
 108 ohm
 115 ohm
 11.19 ohm

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