Question

In the circuit given below, $V\left(t\right)$ is the sinusoidal voltage source then voltage drop $V_{AB}\left(t\right)$ across the resistance R

• A. Is half wave rectified
• B. Is full wave rectified
• C. Has the same peak value in the positive and negative half cycle
• D. Has different peak value during positive and negative half cycle

Answer 1

The correct option is D Has different peak value during positive and negative half cycle

For the given circuit,

For positive half cycle:
in this condition $D_1$ is reverse biased and $D_2$ forward biased.

and wave output diagram is given as

Now for negative half cycle:
in this condion $D_1$ is forward bias and $D_2$ reverse bias.
and also the potential drop in this condition is more than the previous one because of less potential drop at $100\Omega$ as compared to $150\Omega$.
This gives larger potential drop at $V_{AB}$ than previous.
So wave output diagram is given by,

The final output wave:

Hence, option D is correct option.