The output of the given circuit in figure given below,

Options

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 ouput
D. would be like that of a full wave reactifier.

Answer

C

Explanation

Due to forward biased during positive half cycle of input AC voltage, 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. This result into zero output voltage across `p - n` junction.
Due to reverse bisase during negative half cycle of 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. That is why, there will be voltage across `p - n` junction with negative cycle in output.