Question

An input voltage in the form of a square wave of frequency 1 kHz is given to a circuit, which results in the output shown schematically below. Which one of the following options is the CORRECT representation of the circuit?

• A. A
• B. B
• C. C
• D. D

Hint:

For smoothing and filtering square wave inputs, a resistor-capacitor (RC) circuit is often used. The placement of the capacitor and resistor depends on the type of filtering needed (high-pass or low-pass).

Answer 1

The Correct Option is A

- The given output waveform suggests a filtering or smoothing action, which is typically achieved by a resistor-capacitor (RC) circuit. The circuit behavior can be determined by analyzing the time constant and the frequency response.
- From the options, the configuration of resistor and capacitor in series fits the expected behavior as described.