Coulomb’s law, describes the electrostatic force between charged objects, which is proportional to the charge on each object and inversely proportional to the square of the distance between the objects, electric field, defines the force per unit charge at all locations in space around a charge distribution, electric potential, the electric potential energy per unit charge, electric potential energy, the work that a charge can do by virtue of its position in an electric field, electron, subatomic particle that carries one indivisible unit of negative electric charge, induction, creating an unbalanced charge distribution in an object by moving a charged object toward it (but without touching), law of conservation of charge, states that total charge is constant in any process, polarization, separation of charge induced by nearby excess charge, proton, subatomic particle that carries the same magnitude charge as the electron, but its charge is positive, alternating current, electric current whose direction alternates back and forth at regular intervals, ampere, unit for electric current; one ampere is one coulomb per second ( 1A=1C/s), circuit diagram,  schematic drawing of an electrical circuit including all circuit elements, such as resistors, capacitors, batteries, and so on, conventional current, flows in the direction that a positive charge would flow if it could move, direct current, electric current that flows in a single direction, electric circuit, physical network of paths through which electric current can flow, electric current, electric charge that is moving, electric power, rate at which electric energy is transferred in a circuit, equivalent resistor, resistance of a single resistor that is the same as the combined resistance of a group of resistors, in parallel, when a group of resistors are connected side by side, with the top ends of the resistors connected together by a wire and the bottom ends connected together by a different wire, in series, when elements in a circuit are connected one after the other in the same branch of the circuit, Ohm’s law, electric current is proportional to the voltage applied across a circuit or other path, ohmic, material that obeys Ohm’s law, resistance, how much a circuit element opposes the passage of electric current; it appears as the constant of proportionality in Ohm’s law, resistor, circuit element that provides a known resistance.

Unit 9: Electricity

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