Question

Consider the circuit shown in the figure below:
The circuit will work as a

• A. Second crder high pass filter
• B. Second order band -pass filter
• C. None of the above
• D. Second crder low pass filter

Answer 1

The correct option is B Second order band -pass filter

For $f=0kHz,$ the input will be disconnected from the op-amp circuit, Hence $V_0=0V$


Due to the (-ve) feedback the value of $V^{+}=V^{-}=V_0=0V$
And for $f=\infty$ , also the input will be cut-off from the op-amp due due to virtual ground.



Due to the (-ve) feedback the value of $V^{+}=V^{-}=V_0=0V$