Semiconductor Electronics Materials Devices and Simple Circuits - Result Question 37
37. A d.c. battery of volt is connected to a series combination of a resistor and an ideal diode as shown in the figure below. The potential difference across will be
[2002]
(a)
(b) Zero when diode is forward biased
(c) V when diode is reverse biased
(d) V when diode is forward biased
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Answer:
Correct Answer: 37. (d)
Solution:
- (d) In forward biasing, the diode conducts. For ideal junction diode, the forward resistance is zero; therefore, entire applied voltage occurs across external resistance
i.e., there occurs no potential drop, so potential across is in forward biased.
(b) For conduction,