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).
An electric battery is a device consisting of one or more electrochemical cells with external connections provided to power electrical devices such as flashlights, smartphones, and electric cars. When a battery is supplying electric power, its positive terminal is the cathode and its negative terminal is the anode. The terminal marked negative is the source of electrons that when connected to an external circuit will flow and deliver energy to an external device.