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9 Cards in this Set

  • Front
  • Back
communication
a process by which information is exchanged between individuals through a common system of symbols, signs, or behavior
circuit
the complete path of an electric current including usually the source of electric energy
charge
a definite quantity of electricity
electricity
a fundamental form of energy observable in positive and negative forms that occurs naturally (as in lightning) or is produced (as in a generator) and that is expressed in terms of the movement and interaction of electrons
electromagnet
a core of magnetic material (as iron) surrounded by a coil of wire through which an electric current is passed to magnetize the core
battery
a group of two or more cells connected together to furnish electric current
telegraph
an apparatus for communication at a distance by coded signals; especially : an apparatus, system, or process for communication at a distance by electric transmission over wire
semaphore
an apparatus for visual signaling (as by the position of one or more movable arms)
cable
a wire or wire rope by which force is exerted to control or operate a mechanism