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.