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Define oscillating signal ?

Define oscillating signal ?


Oscillation is flow of electricity changing periodically from a maximum to a minimum; especially: a flow periodically changing direction. An oscillator repeatedly fluctuates back and forth between two states, limits or points based on changes in energy to produce an output wave form or signal for a purpose.

            Oscillation is the repetitive variation, typically in time, of some measure about a central value (often a point of equilibrium) or between two or more different states. Familiar examples include a swinging pendulum and AC power. The term vibration is sometimes used more narrowly to mean a mechanical oscillation but sometimes is used to be synonymous with "oscillation". Oscillations occur not only in physical systems but also in biological systems and in human society.
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