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Signals and Switches - Technical MCQs

Q1:

If the input voltage on D1 in the given figure is changed to 0 V, what is the output voltage Vout?

A –5 V

B 0 V

C +5 V

D +4.3 V

ANS:B - 0 V

Because when we will aaply 0v to the input of D1 then both the diodes will be reversed biased and thus they will be open circited and thus output will be 0 volt.