Asked in UHS MDCAT 2008 2008Moderate

Practically _ current flows in a reverse p-n junction.

Correct answer: A. No

  • A. No
  • B. Very large
  • C. Few milliamperes
  • D. Both A and C

Explanation

a) No: This option suggests that practically no current flows in a reverse p-n junction. When a p-n junction is reverse-biased (i.e., the p-side is connected to the negative terminal of a voltage source and the n-side is connected to the positive terminal), only a very small leakage current flows. This current is typically so small that it can be considered negligible for most practical purposes.

Last updated

About PN Junction

A PN junction forms when p type and n type semiconductor regions meet, creating a depletion layer and a potential barrier. The topic covers forward and reverse bias, diode current voltage characteristics, breakdown and rectification, while distinguishing an ordinary junction diode from a transistor formed from multiple junctions.

Practise Electronics

660 free Electronics MCQs from Physics, each with the correct answer and an explanation. Unlimited attempts, no account needed.

Exams that ask Physics questions like this

Physics is on 13 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.

Related questions