In electronics (specifically, signal processing), half time usually refers to the time it takes for the amplitude of a pulse to drop from 100% to 50% of its peak value. Electronics refers to the flow of charge (moving Electrons through Nonmetal conductors (mainly Semiconductors, whereas electrical Signal processing is the analysis interpretation and manipulation of signals Signals of interest include sound, images, biological signals such as Amplitude is the magnitude of change in the oscillating variable with each Oscillation, within an oscillating system In Signal processing, the term pulse has the following meanings A rapid transient change in the amplitude of a signal from a baseline value to a higher