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Electricity : (Electric Cell (Produces electric current (uses the chemical…
Electricity :
Electric Cell
Produces electric current
uses the chemical or physical properties of materials
Primary Cell
Produce electric current through chemical reactions
Continue until one or more of the chemicals is used up
Storage Cell
Produce electric current through chemical reactions
Reverses the chemical reactions and charges the battery
Electric Charge
property that allows an object to exert an electric force on another object
Without Touching
Electric Feild
Space around particle through which an electric charge can exert electric chrage
Greater near particle and weaker farther away
Static Charge
Build up of electric charge in object
Caused by presence of many particles with same charge
Induction
Buildup of charge
Without direct contact
Insulator
Material that does not allow electric charge to pass through it easily
Plastic and rubber
Conductor
Material that allows electric charge to pass through it easily
Iron, steel, copper, and aluminum
Electric Potential
Amount of electric potential energy per unit charge
At a certain position in electric feild
Volt
Equal to one joule of energy per coulomb of charge
Resistance
Property of material that determines how easily a charge can move through it
Measured in ohms
Ohms
Unit that electrical resistance is measured in
Grounding
providing a harmless, low-resistance path
A ground for electricity to flow
Electric Current
Form of electricity used to supply energy
In buildings
Ampere (amp)
Amount of charge that flows past a given point
Per unit of time
Ohm's law
Current= voltage/resistance
I=V/R