POWER ELECTRONICS QUIZ

 junction J2 is in reverse bias and J1, J3 is in forward bias.

  junction J1, J3 is in reverse bias and J2 is in forward bias.

 junction J3 is in forward bias and J1, J2 in reverse bias.

 junction J1 and J2 is in forward bias and J3 is in reverse bias.

  high voltage direct current transmission.

 medium voltage direct current transmission.

 low - voltage direct current transmission.

  all of these.

 gate signal is always present.

None of these

 gate signal should present but can be removed.

  gate signal must be removed.

 23 mA.

  10 mA.

 60 mA.

 40 mA.

 snubber circuit.

 fast acting fuse.

  metal oxide varistor.

 aluminium block.

 None of these.

 Insulation failure.

  Local hot spot.

 Breakdown of junction.

 to limit dV / dt of SCR.

 for voltage equalisation.

  both B and C.

 to limit di / dt of SCR.

 It is related to turn off process of the device.

 Both C and D.

 It is related to conduction process of device.

  It is related to turn on process of the device.

 140 μs.

 130 μs.

  135 μs.

 145 μs.

 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.