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In a zener diode

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<P>both p- and n-side are very lightly doped.
both p- and 11-side are HEAVILY doped.
p-side is heavily doped but n-side is lightly doped.
p-side is ilightly doped but n-side is heavily doped.

Solution :In a zener diode both p-side and n-side of p-n JUNCTION are heavily doped so that breakeven VOLTAGE is about 5 V.


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