Q. Why a voltage follower stage is connected at the output of the negative small signal half wave rectifier?

A
Due to Non-uniform input resistance
B
Due to Non-uniform output resistance
C
Due to Uniform output voltage
D
None of the mentioned
Solution:

The output resistance of the circuit is non-uniform as it depends on the state of diode. That is, the output impedance is low when diode is on and high when diode is off.

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