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Power Electronics

Power Electronics
Which of following devices has highest di/dt and dv/dt capability?

 SCR.
 SITH.
 SIT.
  GTO.

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Power Electronics
During reverse recovery time

  both B and C.
 charge carrier of junction J2 recombined.
 charge carrier of junction J3 is swept out.
 charge carrier of junction J1 is swept out.

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Power Electronics
SCRs are used in series to meet

 low current demand.
  high voltage demand.
 low voltage demand.
 high current demand.

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Power Electronics
A thyristor will be triggered when Vg = 1.5 volt and Ig = 100 mA in the given figure. Calculate the value of R in ohm is

  37.14.
 60.
 3.714.
 65.

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Power Electronics
IGBT combines the advantages of

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

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Power Electronics
When the temperature increases, the inter-base resistance (RBB) of a UJT ___________.

Decreases
Remains the same
None of these
Increases

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