Question

Presbycusis is a hearing loss due to age that progressively affects higher frequencies. A hearing aid amplifier is designed to amplify all frequencies equally. To adjust its output for presbycusis, would you put a capacitor in series or parallel with the hearing aid’s speaker? Explain.

a) In series to amplify high frequencies.

b) In parallel to amplify high frequencies.

c) In series to amplify low frequencies.

d) In parallel to amplify low frequencies.

Answer 1

To adjust the output for presbycusis, a capacitor should be put in parallel with the hearing aid's speaker to amplify high frequencies.

Step-by-step explanation:

To adjust the output of a hearing aid amplifier for presbycusis, you would put a capacitor in parallel with the hearing aid's speaker. Presbycusis is a type of hearing loss that primarily affects higher frequencies. By adding a capacitor in parallel, it will allow more current to flow through the higher frequencies, effectively amplifying them and compensating for the hearing loss. This is because a capacitor has a lower impedance at high frequencies, allowing those frequencies to be amplified more.