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connecting wire - a metal conductor that allows an electrical current to travel from one point on a circuit to another, resistor - a passive two-terminal electrical component that implements electrical resistance as a circuit element, electric bulb - an incandescent light bulb, incandescent lamp or incandescent light globe or an electric light with a wire filament heated to such a high temperature that it glows with visible light, closed switch - a device with contacts that are touching each other so that current can pass, open switch - a device with contacts that are not in touch each other so that current cannot pas, ammeter - a device which measures the intensity of the current, voltmeter - a device which measures the potential difference (or voltage), cell - a device that pushes the electric current from the positive terminal round to the negative one, battery - two or more cells connected end-to-end, resistors in series - resistors connected as to carry the same current, but the voltage drops across, resistors in parallel - resistors connected as to have the same voltage across each component , electrical circuit - a close path in which electrons from a voltage (or current source) flow,



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