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8Sci CH 1 Electric

Electricity

TermDefinition
electrical charge concentration of electricity
unlike charges dissimilar electrical charges that attract one another
like charges similar electrical charges that repel each other
insulator material that does not allow electrical charges to flow freely from place to place
conductor material that allows electrical charges to flow freely from place to place
potential difference change in total energy divided by the total charge
circuit any complete pathway through which electrical current flows
current rate at which electrical charge flow past a point in a circuit over a specific amount of time
resistance property of materials indicating how much energy is changed to thermal energy and light as an electrical charge passes through them
resistance depends on the material of the conductor in addition to the conductor’s thickness and length
amperes measured by an instrument called an ammeter
current is equal to the potential difference divided by resistance V/R=I
conductors are attracted both positive and negative charges
conductors power cables conduct electricity safely by wrapping conductors in such insulators as rubber
electrical charges can move easily through conductors but not through insulators
Created by: hockettd
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