Question

Define the terms? 1. analog signal.2.digital signal 3. periodic signal.4.non periodic signal.5. big amplitude.

Answer 1

 An analog signal is any continuous signal for which the time-varying feature (variable) of the signal is a representation of some other time varying quantity, i.e., analogous to another time varying signal.

 A digital signal is a signal that is being used to represent data as a sequence of discrete values; at any given time it can only take on one of a finite number of values.

 A signal is a periodic signal if it completes a pattern within a measurable time frame, called a period and repeats that pattern over identical subsequent periods. The completion of a full pattern is called a cycle.

 A signal that repeats its pattern over a period is called periodic signal  A signal that does not repeats its pattern over a period is called aperiodic signal or non periodic.

 Amplitude measures how far a wave rises and falls. A wave's amplitude is defined as half the distance from its highest point to its lowest point. ... The bigger the amplitude, the more severe the wave is, the disturbance is. the amplitude is the maximum displacement form equilibrium.