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Power Electronics

Power Electronics
Figure shows two thyristors rated 400 A sharing a load current. Current through T2 is 180A. Current through T1 will be

 100 A.
  150 A.
 110 A.
 120 A.

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Power Electronics
IGBT combines the advantages of

 SITs and MOSFETs.
 None of these.
  BJTs and MOSFETs.
 BJTs and SITs.

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Power Electronics
A diac has ___________ terminals.

Three
None of these
Two
Four

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Power Electronics
A triac is a ___________ switch

Bidirectional
Unidirectional
Mechanical
None of these

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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?

 115 ohm
 108 ohm
 11.19 ohm
  111.9 ohm

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Power Electronics
BCT is used for

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

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