Semiconductor Electronics Materials Devices and Simple Circuits - Result Question 44
45. A semi-conducting device is connected in a series circuit with a battery and a resistance. A current is found to pass through the circuit. If the polarity of the battery is reversed, the current drops to almost zero. The device may be
(a) a $p-n$ junction
[1998]
(b) an intrinsic semi-conductor
(c) a p-type semi-conductor
(d) an $n$-type semi-conductor
Show Answer
Answer:
Correct Answer: 45. (a)
Solution:
- (a) In reverse bias, the current through a $p-n$ junction is almost zero.
