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Electronic Devices and Circuits - Engineering

Q1:

At room temperature the barrier potential in a silicon diode is

A 0.1 V

B 0.3 V

C 0.7 V

D 1 V

ANS:C - 0.7 V

This 0.7 V is also called cut in voltage. When forward voltage is 0.7 V or less there is no current.