Pn Junction Forward Bias
Easyphysics
Forward biasing a PN junction means?
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Solution
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P side to positive, N side to negative
- Definition of Forward Bias: An external voltage arrangement that reduces the potential barrier of the PN junction.
- 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.
- 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.
- 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.
- Reverse Bias Note: The opposite connection (P to negative, N to positive) is known as reverse bias.
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About This Question
- Subject
- physics
- Chapter
- semiconductor devices
- Topic
- pn junction forward bias
- Difficulty
- Easy
- Year
- 2025
This easy difficulty physics question is from the chapter semiconductor devices, covering the topic of pn junction forward bias. It appeared in the 2025 exam. Practice this and similar questions to strengthen your understanding of semiconductor devices concepts.
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