Signals and Switches

Q1: What is the minimum voltage required before a diode will allow current to flow between the cathode and the anode?

A 0.7 V

B 4.3 V

C 0.07 V

D 0.2 V

ANS:A - 0.7 V

This is called as "Threshold voltage/Cut-in voltage" of the diode. It is the voltage after which diode starts conducting.

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