Define Amplitude and Phase of Sinusoidal quantity.

Define Amplitude and Phase of Sinusoidal quantity.
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Answer :

Amplitudes are expressed either as instantaneous values or mostly as peak values. 

Amplitude is the fluctuation or displacement of a wave from its mean value. 

Phase is the position of a point in time (an instant) on a waveform cycle. 

Phase an expression of relative displacement between or among waves having the same frequency . 

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