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In a first order high pass filter, frequencies higher than low cut-off frequencies are called
  • a)
    Stop band frequency
  • b)
    Pass band frequency
  • c)
    Centre band frequency
  • d)
    None of the mentioned
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
In a first order high pass filter, frequencies higher than low cut-of...
Low cut-off frequency, fL is 0.707 times the pass band gain voltage. Therefore, frequencies above fL are pass band frequencies.
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In a first order high pass filter, frequencies higher than low cut-of...
High Pass Filter:
A high pass filter is an electronic circuit that allows high-frequency signals to pass through while attenuating low-frequency signals. It is commonly used in audio systems and communication devices to separate high-frequency components from the input signal.

Low Cut-Off Frequency:
The low cut-off frequency (also known as the corner frequency or -3dB frequency) is the point at which the output signal of a high pass filter starts to attenuate the input signal. Frequencies below the low cut-off frequency are greatly reduced or blocked in the output signal.

Pass Band Frequency:
The pass band frequency is the range of frequencies that are allowed to pass through a filter without significant attenuation. In a high pass filter, frequencies higher than the low cut-off frequency are considered to be in the pass band.

Explanation:
In a first-order high pass filter, frequencies higher than the low cut-off frequency are allowed to pass through with minimal attenuation. This means that these frequencies are part of the pass band.

The purpose of a high pass filter is to filter out low-frequency signals and allow high-frequency signals to pass through. The low cut-off frequency determines the point at which the filter starts attenuating the input signal. Frequencies below this cut-off point are greatly reduced or blocked in the output signal.

Therefore, frequencies higher than the low cut-off frequency are considered to be in the pass band of a high pass filter. These frequencies are not attenuated significantly and can be observed in the output signal.

Conclusion:
In a first-order high pass filter, frequencies higher than the low cut-off frequency are part of the pass band. This means that they are allowed to pass through with minimal attenuation. Frequencies below the low cut-off frequency are attenuated or blocked in the output signal.
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In a first order high pass filter, frequencies higher than low cut-off frequencies are calleda)Stop band frequencyb)Pass band frequencyc)Centre band frequencyd)None of the mentionedCorrect answer is option 'B'. Can you explain this answer?
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