Question

Capacitors are sometimes used in DC circuits to

A. counteract inductive reactance at specific locations.
B. smooth out slight pulsations in current/voltage.
C. assist in stepping voltage and current up and/or down.

Answer 1

Capacitors are used in DC circuits to smooth out slight pulsations in current/voltage by filtering out noise or unwanted frequencies.

Step-by-step explanation:

Capacitors are sometimes used in DC circuits to smooth out slight pulsations in current/voltage. The reactance of a capacitor decreases with increasing frequency, allowing it to pass high-frequency signals while blocking low-frequency signals. This property makes capacitors useful for filtering out noise or unwanted frequencies in a circuit, such as removing the 60 Hz hum in a sound reproduction system.