Power Electronics
Which of the following is disadvantage of fast recovery diodes?

  Doping is carried out.
 None of these.
 Recovery is only 5 µs.
 Recovery is only 50 µs.

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Power Electronics
Maximum di / dt in a SCR is

 both A and C.
 inversely proportional to L in the circuit.
  directly proportional to Vm of supply voltage.
 inversely proportional to Vm of supply voltage.

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