Power Electronics
An SCR has half cycle surge current rating of 3000 A for 50 Hz supply. One cycle surge current will be

 4242.64 A.
 6000 A.
 2121.32 A.
 1500 A.

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Power Electronics
During gate recovery time

 charge carrier of J1 junction removed.
 charge carriers of J3 junction is removed.
  charge carriers of J2 junction recombined.
 charge carriers of J2 junction is swept out.

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