3 Questions
What type of junction is formed in a P n junction diode?
P-type and n-type semiconductor junction
What happens to the P n junction diode in forward bias?
It allows current to flow
What is the role of the depletion region in a P n junction diode?
To create a potential barrier
Study Notes
P-N Junction Diode
- A P-N junction diode is formed by combining two types of semiconductor materials, p-type (positive) and n-type (negative), creating a junction.
Characteristics
- Forward bias occurs when the positive terminal of the battery is connected to the p-type material and the negative terminal is connected to the n-type material.
- In forward bias, the depletion region is reduced, and the diode becomes less resistive, allowing current to flow.
Depletion Region
- The depletion region is a narrow region at the P-N junction where the electrons and holes combine, leaving no charge carriers.
- The role of the depletion region is to act as a barrier to the flow of charge carriers, controlling the flow of current.
Test your knowledge of P n junction diode basics with this quiz. Explore questions about the type of junction formed, the behavior in forward bias, and the role of the depletion region.
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