Question

The output of the given circuit in figure given below,

A. would be zero at all times.
B. would be like a half wave rectifier with positive cycles in output
C. would be like a half wave rectifier with negative cycles in output.
D. would be like that of a full wave rectifier.

Answer 1

Correct Answer - C
During positive half cycle of input ac voltage, the p-n junction is forward biased. The resistance of p-n junction is low. The current in the circuit is maximum In this situation, a maximum potential difference will appear across resistance connected in series of circuit.Due to it, there is no output voltage across p-n junction. During the negative half cycle of input ac voltage, the p-n junction is reverse biased. The resistance of p-n junction becomes high which will be more than resistance in series. Due to it, there will be voltage across p-n junction with negative cycle in output.Thus, option (c) is correct.