2^nd Order Band Reject Filter

Questionair

Q.1     What is the function of the filter?
A)    Filtering either one frequency or range of frequencies
B)    Increasing the frequency and amplitude
C)    Decreasing the frequency and amplitude
D)    None of these

Ans :     (A)

Q.2    Band Reject Circuit is designed with the help of __________ filters?
A)   Low Pass and High Pass
B)   Low Pass and Low Pass
C)   High Pass and High Pass
D)   None of these
Ans :     (A)

Q.3    If f_l = 1 / 2 π R₁ C₁ and f_h = 1 / 2 π R₂ C₂, then the Center frequency of Band Pass Filter is ?
A)   f = √ f_l . f_h
B)   f = f_l . f_h
C)   f = f_l / f_h
D)   f = f_l - f_h
Ans :     (A)

Q.4    Function of Band Reject Filter is ?
A)   Suppression of Intermediate frequency of Low and High Pass Filters
B)   Addition of low cut-off and High cut-off Frequency of high and pass frequency respectively
C)   Subtracting of low cut-off and High cut-off Frequency of high and pass frequency respectively
D)   None
Ans :     (A)

Q.5    BODE Plot is a graph plotting of?
A)   Amplitude or phase on X-axis and Frequency on Y-axis
B)   Amplitude or phase on Y-axis and Frequency on X-axis
C)   Both
D)   None
Ans :     (B)

Q.6    For making the Band Pass Filter, High Pass Filter _____and Low Pass Filter____?
A)   Preceded , followed
B)   Followed, Preceded
C)   Both
D)   None
Ans :     (A)