A p-n junction has a thickness of the order of | Physics | SolveeIt

Question

A p-n junction has a thickness of the order of

1 cm

1 mm

$10^{-6}cm$

$10^{-12}cm$

Answer

$10^{-6}cm$

Explanation

Solution

When P- type semiconductor is mixed with $N$ - type semiconductor, PN - junction is formed. There is very small region $\\{$ which is in order of micro metre $\\}$ . This region is known as depletion region. so, the thickness of PN - junction $\\{$ depletion region $\\}$ is in order of $10^{-6} m$ .

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