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Questions type  Normal Difference Multiple Others

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  • Question:Assertion (A): A transistor requires a continuous base signal for conduction but a th... Multiple
    Options: A. Both A and R are correct and R is correct explanation of A B. Both A and R...
  • Question:A single phase half wave rectifier is feeding a resistive load. When a = 0, dc o... Multiple
    Options: A. 127 V B. 120 V C. 110 V D. 100 V ...
  • Question:   Figure shows a chopper feeding RLE load, The free wheeling diode conducts ... Multiple
    Options: A. thyristor is on B. thyristor is off C. both when thyristor is on and...
  • Question:In a single phase full wave converter (M-2 connection) feeding on R - L load, the input vo... Multiple
    Options: A. B. C. D. ...
  • Question:A 3 kV circuit uses SCR of 800 V rating. If derating is 25%, the number of SCRs in series ... Multiple
    Options: A. 4 B. 5 C. 6 D. 8 ...
  • Question:For a BJT a = 0.98, then β =... Normal
    Answer:...
  • Question:Current derating may be necessary when thyristors are operating in... Multiple
    Options: A. series B. parallel C. series or parallel D. none of the above ...
  • Question:The terminals of a power BJT are called... Multiple
    Options: A. emitter, base, collector B. emitter, base, drain C. source, base, dr...
  • Question:A two winding transformer is feeding a single phase half wave rectifier circuit. The load ... Multiple
    Options: A. Is = Irms irrespective of the value of firing angle B. Is =...
  • Question:An electric heater is controlled by thyristors through on-off control. If a = 0.... Multiple
    Options: A. 16% maximum B. 40% of maximum C. 60% of maximum D. 84% of maxi...
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