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A filter that passes frequencies between two designated cut-off frequencies and attenuates all other frequencies is called?
  • a)
    high pass filter
  • b)
    band elimination filter
  • c)
    band pass filter
  • d)
    low pass filter
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
A filter that passes frequencies between two designated cut-off freque...
A band pass filter passes frequencies between two designated cut-off frequencies and attenuates all other frequencies. A band pass filter has two cut-off frequencies and will have the pass band f2-f1; f1 is the lower cut-off frequency, f2 is the upper cut-off frequency.
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A filter that passes frequencies between two designated cut-off freque...
Answer:

A filter that passes frequencies between two designated cut-off frequencies and attenuates all other frequencies is called a band pass filter. It is designed to allow a specific range of frequencies to pass through while attenuating frequencies outside this range.

Band Pass Filter:
A band pass filter is a type of electronic filter that allows a certain range of frequencies to pass through while attenuating frequencies below and above the desired range. It is characterized by two cut-off frequencies, namely the lower cut-off frequency (fL) and the upper cut-off frequency (fH). Frequencies below fL and above fH are attenuated, while those within this range are allowed to pass through.

Frequency Response:
The frequency response of a band pass filter is a graph that represents the filter's behavior across a range of frequencies. It shows the magnitude response (gain) and phase response of the filter. In the case of a band pass filter, the magnitude response is high within the passband (between fL and fH) and decreases significantly outside this range.

Applications:
Band pass filters find applications in various fields, including telecommunications, audio processing, signal processing, and image processing. Some common applications include:

1. Audio Equalization: Band pass filters are used in audio systems to select specific frequency ranges for equalization purposes, such as boosting or attenuating certain frequencies.
2. Wireless Communication: Band pass filters are used in wireless communication systems to select specific frequency bands for transmission and reception, allowing efficient use of the available frequency spectrum.
3. Biomedical Signal Processing: In medical devices, band pass filters are used to extract specific frequency components from physiological signals, such as electrocardiogram (ECG) or electroencephalogram (EEG) signals.
4. Image Processing: Band pass filters are used in image processing applications to enhance or extract specific frequency components from images, such as edge detection or image sharpening.

Conclusion:
In summary, a band pass filter is a type of electronic filter that allows a specific range of frequencies to pass through while attenuating all other frequencies. It is characterized by two cut-off frequencies and finds applications in various fields including audio processing, wireless communication, biomedical signal processing, and image processing.
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A filter that passes frequencies between two designated cut-off frequencies and attenuates all other frequencies is called?a)high pass filterb)band elimination filterc)band pass filterd)low pass filterCorrect answer is option 'C'. Can you explain this answer?
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