Aggregate Demand. The AD curve shows the relationship between prices and the demand for output in an. economy. W can derive the AD curve in the following way. 1. The Monetarist View of AD. Monetarists believe that shifts in AD are cause primarily by changes in the money. supply. Using the equation of exchange: MV â¡ PY.
These terms have given rise to abbreviations for the types of switch which are used in the electronics industry such as  single-pole, single-throw  (SPST) (the simplest type, on or off) or  single-pole, double-throw  (SPDT), connecting either of two terminals to the common terminal.
1 3-way switch variations. 2  Several example circuits using two switches to control a light. 3  Some have the light between the switches, while some have the light at the end. 4  4-way switch variations. 5  A similar collection of circuits if you need three or more switches.