Power Electronics
The maximum di/dt in a SCR is

  Both A and B.
 Directly proportional to supply voltage.
 Inversely proportional to supply voltage.
 Directly proportional to inductance in the circuit.

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Power Electronics
Dynamic equalizing circuit is used for

  equal division of voltage across each thyristor.
 equal division of voltage across each thyristor in parallel.
 equal division of current through each thyristor in parallel.
 equal division of current through each thyristor in series.

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