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14.Semiconductor Electronics
hard
Take the breakdown voltage of the zener diode used in the given circuit as $6\, V$. For the input voltage shown in figure below, the time variation of the output voltage is : (Graphs drawn are schematic and not to scale)

A

B

C

D

(JEE MAIN-2020)
Solution
As there are two zener diodes in reverse polarity so if one is in forward bias the other will be in reverse bias and above $6\, V$ the reverse bias will too be in conduction mode. Therefore when voltage is more than $6\, V$ the output will be constant. And when it is less than $6\, V$ it will follow the input voltage.
Standard 12
Physics