Question

Would you use a large inductance or a large capacitance in series with a system to filter out low frequencies, such as the hum in a sound system? Explain.

Short answer

To filter out low-frequency hums, connect a big capacitance in series with the sound system.

Step-by-step solution

Definition of frequency and capacitor

The number of times a repeated event occurs per unit of time is known as frequency. It's also referred to as temporal frequency to distinguish it from spatial frequency, and ordinary frequency to distinguish it from angular frequency.

A capacitor is an electrical energy storage device that operates in an electric field. It's a two-terminal passive electrical component. Capacitance is the term used to describe the effect of a capacitor.

Explanation

When linked in series, an inductor functions as a low-pass filter, blocking high frequencies while allowing low frequencies to flow through.

A capacitor connected in series, on the other hand, serves as a high-pass filter, blocking low frequencies while allowing high frequencies to flow through.

Put a big capacitance in series with a sound system to filter out low frequencies, since this will prevent low-frequency hums from going through.