Communication System Question 11
Question: In the circuit given below, V(t) is the sinusoidal voltage source, voltage drop $ V _{AB}(t) $ across the resistance R
Options:
A) Is half wave rectified
B) Is full wave rectified
C) Has the same peak value in the positive and negative half cycles
D) Has different peak values during positive and negative half cycle
Show Answer
Answer:
Correct Answer: D
Solution:
[d] In positive half cycle one diode is in forward biasing and other is in reverse biasing while in negative half cycle their polarity reverses, and direction of current is opposite through R for positive and negative half cycles so output is not rectified. Since $ R _{1} $ and $ R _{2} $ are different hence the peaks during positive half and negative half of the input signal will be different.
BETA
