For a Band Pass Filter, the slope of the filter is given as 80dB/decade. The order of the Band Pass Filter is _________

The Bode plot is a logarithmic plot which helps in fitting a large scale of values into a small scale by the application of logarithm. Plotting the slope 80dB/decade on the Bode plot, we get n=8. Hence the order of the Band Pass Filter is 8.

For a Band Pass Filter, the slope of the filter is given as 40dB/decade. The order of the Band Pass Filter is __________

The low pass, high pass, band pass and band stop filters can be designed by applying a specific transformation to a normalized low pass filter.

True

False

Find the gain and phase angle of the second order low pass filter? Where pass band gain of the filter is 5, frequency and the high cut-off frequency of the filter are 3000Hz and 1kHz.

None of the mentioned

Gain magnitude = -1.03dB , φ =63.32o

Gain magnitude = -5.19dB , φ =71.56o

Gain magnitude = -4.94dB , φ =90o

Butterworth lowpass filter has a parameter, filter order, determining its functionality as very sharp or very smooth filter function or an intermediate filter function. If the parameter value is of lower order, the filter approaches to which of the following filter(s)?

Ideal lowpass filter

Gaussian lowpass filter

All of the mentioned

None of the mentioned

What is the pass band gain of a low pass filter with 1- δP as the pass band attenuation?

-20log(1- δP)

-20log(δP)

20log(δP)

20log(1- δP)

Twin-T filter is band reject and Notch filter is band pass filter.

True

False

A second order low pass filter is given an input frequency of 30kHz and produce a output having phase angle of 79o. Determine the pass band gain of the filter?

11 dB

89.11 dB

46.78 dB

None of the mentioned

If H(s) is the transfer function of a analog low pass normalized filter and Ωu is the desired pass band edge frequency of new low pass filter, then which of the following transformation has to be performed?

s → s / Ωu

s → s.Ωu

s → Ωu/s

None of the mentioned

The low-pass active filter shown in the figure has a cut-off frequency of 2 kHz and a pass band gain of 1.5. The values of the resistors are

R1 = 10 k$$\Omega $$; R2 = 1.3 $$\Omega $$

R1 = 30 k$$\Omega $$; R2 = 1.3 $$\Omega $$

R1 = 10 k$$\Omega $$; R2 = 1.7 $$\Omega $$

R1 = 30 k$$\Omega $$; R2 = 1.7 $$\Omega $$

From the given specifications, determine the value of voltage gain magnitude of first order and second order high pass butterworth filter? Pass band voltage gain=2; Low cut-off frequency= 1kHz; Input frequency=500Hz.

First order high pass filter =-4.22dB , Second order high pass filter=-0.011dB

First order high pass filter =-0.9688dB , Second order high pass filter=-6.28dB

First order high pass filter =-11.3194dB , Second order high pass filter=-9.3257dB

First order high pass filter =-7.511dB , Second order high pass filter=-5.8999dB