first cause, prime mover, primum mobile - an agent that is the cause of all things but does not itself have a cause; God is the first cause destiny, fate - the ultimate agency regarded as predetermining the course of events (often personified as a woman); we are helpless in the face of destiny
Which Side of a Battery is Positive? A cell or battery is drawn with a long line and a shorter line. The long line is the positive side (plus is longer). The short line is the negative side (minus is shorter).
Batteries have two ends: positive and negative. When the two ends are connected with wire, a circuit is formed. Electrons then flow through the wire, and an electric current is produced. A reaction between the chemicals takes place inside the battery. However, the reaction takes place only if there is a flow of electrons.