In the middle of the depletion layer of a reverse- biased p-n junction, the (a) electric field is zero (b) potential is maximum (c) electric field is maximum (d) potential is zero

Answer: (c). The depletion layer has positive ions on the n-side and negative ions on the p-side. The field grows from the edges and is strongest at the junction, i.e. the middle of the layer; reverse bias increases it further. So the answer is (c) electric field is maximum.

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P-N Junction Diode

In the middle of the depletion layer of a reverse- biased $p\text{-}n$ junction, the

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Answer: (c)

The depletion layer has positive ions on the n-side and negative ions on the p-side.
The field grows from the edges and is strongest at the junction, i.e. the middle of the layer; reverse bias increases it further.
So the answer is (c) electric field is maximum.

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