A woofer should be fed from the input through aa)low pass filterb)high pass filterc)band pass filterd)band stop filterCorrect answer is option 'A'. Can you explain this answer?

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Class 12 Exam > Class 12 Questions > A woofer should be fed from the input through...

A woofer should be fed from the input through a

a)
low pass filter
b)
high pass filter
c)
band pass filter
d)
band stop filter

Correct answer is option 'A'. Can you explain this answer?

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Verified Answer

A woofer should be fed from the input through aa)low pass filterb)high...

Woofer is a low frequency loud speaker covering the range 16 Hz to 500 Hz.

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A woofer should be fed from the input through aa)low pass filterb)high...

A woofer is a type of loudspeaker designed to reproduce low-frequency sounds, typically in the range of 20 Hz to 200 Hz. To ensure the proper functioning and efficiency of a woofer, it needs to be fed with the appropriate frequency range. This is where a low pass filter comes into play.

Low Pass Filter:
A low pass filter is an electronic circuit that allows low-frequency signals to pass through while attenuating or blocking high-frequency signals. It is designed to filter out high-frequency components and allow only the low-frequency components to reach the woofer.

Explanation:
A woofer is specifically designed to reproduce low-frequency sounds, such as bass and sub-bass. These low-frequency sounds typically have a range of 20 Hz to 200 Hz. However, audio signals often contain a wide range of frequencies, including both low and high frequencies.

To ensure that only the low-frequency components of the audio signal reach the woofer, a low pass filter is used. The low pass filter is connected between the audio source and the woofer, acting as a barrier for high-frequency signals.

When the audio signal passes through the low pass filter, the high-frequency components are attenuated or blocked, while the low-frequency components are allowed to pass through. This ensures that the woofer receives only the desired low-frequency signals, enabling it to produce accurate and high-quality bass sounds.

Benefits of Using a Low Pass Filter:
- Improved sound quality: By filtering out unwanted high-frequency components, a low pass filter helps to improve the overall sound quality produced by the woofer.
- Protection for the woofer: High-frequency signals can cause distortion and damage to the woofer if they are not properly filtered out. Using a low pass filter protects the woofer from receiving signals that it is not designed to handle.
- Efficient power usage: Since a woofer is primarily designed to reproduce low-frequency sounds, using a low pass filter ensures that it receives only the necessary signals. This helps to optimize power usage and improve the efficiency of the audio system.

In conclusion, a woofer should be fed from the input through a low pass filter in order to ensure that it receives only the desired low-frequency signals and produces accurate and high-quality bass sounds.

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