Question

It is suitable to connect woofer from the input through ________

(a) band pass filter

(b) band stop filter

(c) low pass filter

(d) high pass filter

I had been asked this question by my school teacher while I was bunking the class.

My query is from AM Wave Representation topic in section Amplitude Modulation of Analog Communications

Answer 1

Right answer is (c) low pass filter

For explanation I would say: Woofer is considered as a low frequency loud speaker. It has a range from 10Hz to 500Hz. So it is better to use low pass filter for connection. Los Pass filter allows low frequencies to pass while high pass filter allows high frequencies to pass. Band pass filter allows a range of frequencies to pass whereas. Band stop filter does the opposite.