forward bias

Question

Forward bias reduces barrier allowing:

RankGuru · Accepted Answer

In forward bias, the positive terminal of the battery is connected to the p-side and negative to the n-side.
- The applied voltage opposes the built-in barrier potential ($V_0$).
- This reduces the width of the depletion layer and the effective barrier height $(V_0 - V)$.
- As a result, many more **majority carriers** (holes from p, electrons from n) gain enough energy to cross the junction, resulting in a large current that increases exponentially with voltage.

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Forward biasing a PN junction means?