Chapter 11 glossary terms electricity unit
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A closed path along which electrons that are powered by an energy source can flow.
e.g: A light bulb is a component that is powered by an electric circuit.
A source of energy that generates electric current by chemical reactions involving two different metals or metal compounds separated by a solution that is a conductor.
e.g: A light bulb
A connection of two or more cells.
One of two metal terminals in a cell or battery.
e.g: positive terminal, negative terminal
A solution or paste that conducts charge.
e.g: moist paste in a cell (battery)
A cell that contains an electrolyte that is a paste.
A cell that contains a liquid electrolyte.
A cell that can only be used once.
e.g: a AA battery
A cell that can be recharged.
e.g: a cell phone
A cell that generates electricity through the chemical reactions of fuel that is stored outside the cell.
e.g: a fuel cell car
A cell that converts sunlight into electrical energy.
e.g: a solar panel
Location on a cell that must be connected to other components to form a circuit.
e.g: a positive terminal and a negative terminal
A control device that can complete or break the circuit it is connected to.
e.g: a light switch
A circuit that contains a gap or break.
The rate of movement of electric charge
The quantity of charge equal to the charge of 6.25x10^18.
The unit of electric current, equivalent to one coulomb per second.
The property of a substance that hinders electric current and converts electrical energy to other forms of energy.
a device used in an electric circuit to decrease the current through a component by a specific amount.
A resistor or any other device that transforms electrical energy into heat, motion, sound, or light.
e.g: a microwave
(voltage) The difference between the electric potential energy per unit of charge at two points in a circuit.
The unit for potential difference, equivalent to one joule (J) per coulomb (C).
A diagram that uses standard symbols to represent the components in an electric circuit and their connections.
A circuit in which there is only one path along which electrons can flow.
A circuit in which there is more than one path for electrons to flow.
The ratio of potential difference to current is a constant called resistance.
The unit for resistance, equivalent to one volt per ampere (V/A)
A material through which electric charge can flow with no resistance.
Not following Ohm’s law.
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