Q. Explain the transfer characteristics in a few words ?
The transfer characteristics are a plot of an output (or a drain) current versus an input controlling quantity. There is therefore a direct transfer from input to output variables. If the relationship were linear, the plot of ID versus VGS would result in a straight line between IDSS and VP. However a parabolic curve will result because a vertical spacing between steps of VGS on the drain characteristics decreases as VGS becomes more and more negative.