Question

Find the output voltage for the circuit below. (Use constant voltage drop model of diode and take cut-in voltage as 0.7V)

(a) 5v

(b) 2v

(c) 0V

(d) 10v

This question was addressed to me in an online interview.

This interesting question is from Parallel Clipper-2 topic in chapter Diode Circuit of Analog Circuits

Answer 1

The correct option is (c) 0V

To elaborate: In circuit of parallel clipper voltage across the diode D2 will be same as a simple parallel clipper. The output of the circuit is null because the output of diode D2 is negative and diode D will not conduct negative voltage.