Power Electronics
Practical way of obtaining static voltage equalization in series connected SCRs is by the use of

  resistors of the same value across each SCR.
 one resistor across the string.
 resistors of different values across each SCR.
 one resistor in series with each SCR.

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Power Electronics
Dynamic equalizing circuit is used for

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

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Power Electronics
Maximum di / dt in a SCR is

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

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