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Electronic Devices and Circuits - Engineering

Q1:

Assertion (A): When a photoconductive device is exposed to light, its bulk resistance increases. Reason (R): When exposed to light, electron hole pairs are generated in the photoconductive device.

A Both A and R are true and R is correct explanation of A

B Both A and R are true but R is not a correct explanation of A

C A is true but R is false

D A is false but R is true

ANS:D - A is false but R is true

When exposed to light bulk resistance decreases. Therefore, A is wrong.