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The graph of potential barrier versus width of depletion region for an unbiased diode is shown in graph A. In comparison to A, , graphs B and C are obtained after biasing the diode in different ways. - Physics

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प्रश्न

The graph of potential barrier versus width of depletion region for an unbiased diode is shown in graph A. In comparison to A, graphs B and C are obtained after biasing the diode in different ways. Identify the type of biasing in B and C and justify your answer

‘A’ ‘B’ ‘C’
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उत्तर

B - reverse biased

In the case of a reverse-biased diode, the potential barrier becomes higher as the battery further raises the potential of the n side.

C - forward biased

Due to the forward bias connection, the potential of P side is raised and hence the height of the potential barrier decreases.

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