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Electricity&Magnetisem
Definitions
10
Science
5th Grade
11/28/2006

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Term
Current
Definition
The quanity of CHARGE per unit time, measured in amperes (Amps,A). By historiacal convention, the sign of current is positive for currents flowing from positive to negitive POTENTIAL, But experience indicates that electrons are negatively chaged and flow in the opposite direction.
Term
Electricity
Definition
The SCIENCE dealing with electric charges and currents.
Term
Circuit
Definition
The complete path of an electric current,including the generating appartus,intervening resistors,or capacitors.
Term
repel
Definition
To drive or force back.
Term
Magnet
Definition
A body, as a piece of iron or steel,that possesses the property of attracting certan substances, such as iron.
Term
Battery
Definition
A combination of two or more cells electrically connected to work together to produce electric energy.
Term
Attract
Definition
Force pulling opposites together.
Term
Conductor
Definition
A material or object that permits an electric current to flow easily.
Term
Electromagnet
Definition
A device consisting of an iron or steel core that is magnetized by electric current in a coil that surrounds it.
Term
Insulator
Definition
A material of such low conductivity that the flow of current through it is negligible.
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