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The total current flowing across a p-n junction may be represented by four current components. Whatare they

Question

The total current flowing across a p-n junction may be represented by four current components. Whatare they

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Solution

The total current flowing across a p-n junction may be represented by four current components. They are:

  1. Diffusion current of electrons: This is the current due to the movement of electrons from the n-region to the p-region, driven by the concentration gradient.

  2. Diffusion current of holes: This is the current due to the movement of holes from the p-region to the n-region, also driven by the concentration gradient.

  3. Drift current of electrons: This is the current due to the movement of electrons under the influence of the electric field within the depletion region.

  4. Drift current of holes: This is the current due to the movement of holes under the influence of the electric field within the depletion region.

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