Semiconducting Devices Question 222
Question: If no external voltage is applied across P-N junction, there would be
[Orissa JEE 2002]
Options:
A) No electric field across the junction
B) An electric field pointing from N-type to P-type side across the junction
C) An electric field pointing from P-type to N-type side across the junction
D) A temporary electric field during formation of P-N junction that would subsequently disappear
Show Answer
Answer:
Correct Answer: B
Solution:
Across the $ P-N $ junction, a barrier potential is developed whose direction is from $ N $ region to $ P $ region.
