# CH 11 ELECTRICITY

 Electric Circuit The flow of electrons Voltaic Cell A source of energy that generates an electric current by chemical reactions involving two different metals or metal compounds separated by a solution that is a conductorA voltaic cell is an electrochemical cell that uses a chemical reaction to produce electrical energ Battery A connection of two or more cells Electrode One of two metal terminals in a cell or battery Electrolyte A solution or paste that conducts charge Dry Cell A cell that contains an electrolyte that is a paste Wet Cell A cell that contains a liquid electrolyte Primary Cell A cell that can be used only once Secondary Cell A cell that can be recharged Fuel Cell A cell that generates electricity through the chemical reactions of fuel that is stored outside the cell Solar Cell A cell that converts sunlight into electrical energy Terminal Location on a cell that must be connected to other components to form a circuit Switch A control device that can complete or break the circuit to which it is connected Open Circuit A circuit that contains a gap or break Electric current The rate of movement of electric charge Coulomb (C) The quantity of charge that is equal to the charge of 6.25 x 10 to the exponent of 18 electrons Ampere (A) The unit of electric current, equivalent to one coulomb per second Electrical Resistance The property of a substance that holds up electric current and converts electrical energy to other forms of energy Resistor A device used in an electric circuit to decrease the current through a component by a specific amount Load A resistor or any other device that transforms electrical energy into heat, motion, sound, or light Potential difference (voltage) The difference between the electric potential energy per unit of charge at two points in a circuitthe difference of electrical potential between two points. Volt The unit for potential difference, equivalent to one joule (j) per coulomb (c) Circuit Diagram A diagram that uses standard symbols to represent the components in an electric circuit and their connections Series Circuit A circuit in which there is only one path along which electrons can flow Parallel Circuit A circuit in which there is more than one path along which electrons can flow Ohm's law The ratio of potential difference to current is a constant called resistance Ohm Ω The unit for resistance, equivalent to one volt per ampere (V/A) Superconductor A material through which electric charge can flow with no resistance Non-ohmic Not following ohm's law Authorjessica_h ID309706 Card SetCH 11 ELECTRICITY DescriptionELLCT Updated2015-10-22T23:57:59Z Show Answers