Diode Models Quiz PDF: Questions and Answers - 151

MCQ 751: When diode isreverse biased, it acts as an open switch in parallel with the

1. large external forward resistance
2. large internal forward resistance
3. small external reverse resistance
4. large internal reverse resistance

MCQ 752: Peak value of output voltage of halfwave rectifier with peak sinewave of input voltage of 25 V is equals to

1. 25 V
2. 24.3 V
3. 25.7 V
4. 23 V

MCQ 753: Electroluminescence is introduced in LED when it is

1. reverse biased
2. forward biased
3. floating biased
4. None of these

MCQ 754: In fullwave center tapped rectifier, half of total secondary voltage appears between center tap and each end of

1. primary voltage
2. secondary voltage
3. source voltage
4. floating voltage

MCQ 755: In BJT, when base emitter junction is forward biased, nominal forward voltage drop at this point will be

1. 0.3 V
2. 0.7 V
3. 1.4 V
4. 2 V