A reversed biased PN Junction has_______

A reversed biased PN Junction has_______

Right Answer is:

Almost no current


Reverse Biasing:- When the positive terminal of a dc source or battery is connected to the n-type and the negative terminal is connected to the p-type semiconductor of a PN junction.

The following points are important to note when a PN junction is reverse biased:

  • The junction potential barrier is strengthened.
  • The junction offers a high resistance (called reverse resistance, R..) to current flow.
  • It may be noted here that at reverse biasing, practically no current flows through the junction, but a little current (in µA) flows through the junction because of minority carriers available in the semiconductors even at room temperature. However, this current is neglected for all practical purposes.
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