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1. Operation of PN Junction:
- A PN junction is formed by bringing together a P-type semiconductor and an N-type semiconductor.
- In the P-type region, there is an excess of holes, while in the N-type region, there is an excess of electrons.
- When the two regions are brought together, the excess electrons from the N-side diffuse to the P-side, and the excess holes from the P-side diffuse to the N-side.
- This diffusion process creates a region near the junction called the depletion region, which is depleted of charge carriers.
- The depletion region acts as a barrier to further diffusion of charge carriers, creating a potential difference across the junction.
- This potential difference is called the built-in potential or the junction potential.

2. Forward Bias Characteristics:
- When a positive voltage is applied to the P-side and a negative voltage is applied to the N-side, the PN junction is said to be forward biased.
- The applied voltage reduces the potential barrier, allowing the current

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1. Operation of PN Junction:
- A PN junction is formed by bringing together a P-type semiconductor and an N-type semiconductor.
- In the P-type region, there is an excess of holes, while in the N-type region, there is an excess of electrons.
- When the two regions are brought together, the excess electrons from the N-side diffuse to the P-side, and the excess holes from the P-side diffuse to the N-side.
- This diffusion process creates a region near the junction called the depletion region, which is depleted of charge carriers.
- The depletion region acts as a barrier to further diffusion of charge carriers, creating a potential difference across the junction.
- This potential difference is called the built-in potential or the junction potential.

2. Forward Bias Characteristics:
- When a positive voltage is applied to the P-side and a negative voltage is applied to the N-side, the PN junction is said to be forward biased.
- The applied voltage reduces the potential barrier, allowing the current

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Sure, I can help you with that.

1. Operation of PN Junction:
- A PN junction is formed by bringing together a P-type semiconductor and an N-type semiconductor.
- In the P-type region, there is an excess of holes, while in the N-type region, there is an excess of electrons.
- When the two regions are brought together, the excess electrons from the N-side diffuse to the P-side, and the excess holes from the P-side diffuse to the N-side.
- This diffusion process creates a region near the junction called the depletion region, which is depleted of charge carriers.
- The depletion region acts as a barrier to further diffusion of charge carriers, creating a potential difference across the junction.
- This potential difference is called the built-in potential or the junction potential.

2. Forward Bias Characteristics:
- When a positive voltage is applied to the P-side and a negative voltage is applied to the N-side, the PN junction is said to be forward biased.
- The applied voltage reduces the potential barrier, allowing the current

Discuss the operation of PN Junction and Zener Diode, sketch its forward, and reverse bias characteristics?

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