Forward Bias
Forward bias reduces barrier allowing:
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About This Question
- Subject
- physics
- Chapter
- semiconductor electronics
- Topic
- forward bias
- Difficulty
- Medium
- Year
- 2025
Solution
Correct Answer:
Increased majority carrier flow
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 (V0).
- This reduces the width of the depletion layer and the effective barrier height (V0−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.
This medium difficulty physics question is from the chapter semiconductor electronics, covering the topic of forward bias. It appeared in the 2025 exam.
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