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# Electricity

### Physics Unit 13

TermDefinition
electric current the flow of charged particles, usually electrons, inside a material that conducts electricity
current measured in Amperes (A)
closed circuit includes at least one continuous closed path of a conductor, such as a wire, allowing electric current to flow
open circuit a path in which the connection is broken in at least one place in the loop, preventing the flow of current
voltage measured in Volts (V)
resistance measured in Ohms (Ω)
Ohm's Law voltage is directly related to current and resistance
conductor offers little resistance to the flow of current
insulator a material with high resistance to the flow of current
series circuit has only one path that electric current can follow.
parallel circuit contains branches that provide more than one path for electric current to follow
electrical power measured in Watts
electrostatics the physics of lightning and charges at rest (static)
Coulomb's Law Electric force is directly related to charge and inversely related to the distance squared
electric field the organization of energy that carries the electric force between charges
like charges repel each other
unlike charges attract each other
multimeter a useful instrument that measures voltage, current, and resistance.
charge measured in Coulombs (C)
Created by: wcscience

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