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Electronic Devices and Circuits

Q1: For a photoconductor with equal electron and hole mobilities and perfect ohmic contacts at the ends, an increase in illumination results in

A a change in O.C. voltage

B a change in S.C. current

C a decrease in resistance

D an increase in resistance

ANS:C - a decrease in resistance

Increase in illumination reduces resistance of a photoconductor.



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