Final answer:
A relaxation oscillator is an oscillator circuit that produces a fixed-rate rhythm. It uses an RC circuit to create a repeating pattern of voltage or current. This type of oscillator has practical applications in controlling flashing lights and generating vibrations.
Step-by-step explanation:
An oscillator circuit that produces a fixed-rate rhythm is known as a relaxation oscillator. This type of oscillator uses an RC (resistor-capacitor) circuit, where the capacitor charges and discharges through the resistor, creating a repeating pattern of voltage or current.
For example, a relaxation oscillator can be used to control indicator lights that flash at a specific frequency. The frequency of the flashing is determined by the values of the resistor and capacitor in the circuit.
Other practical applications of relaxation oscillators include electronic circuits, turn signals in cars, and vibration in cell phones.