pn junction forward bias

Question

Forward biasing a PN junction means?

RankGuru · Accepted Answer

1. **Definition of Forward Bias**: An external voltage arrangement that reduces the potential barrier of the PN junction.
2. **Connection**: The **P-type** region is connected to the **positive** terminal of the battery, and the **N-type** region is connected to the **negative** terminal.
3. **Physical Effect**: The positive terminal repels holes in the P-side toward the junction, and the negative terminal repels electrons in the N-side toward the junction.
4. **Barrier Change**: This results in a thinning of the depletion region and a reduction in the height of the potential barrier, allowing significant current flow.
5. **Reverse Bias Note**: The opposite connection (P to negative, N to positive) is known as reverse bias.

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pn junction forward bias

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