Electrostatics
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11 Terms
Electric charge
Like charges repel and opposites attract.
Electrical charge and the structure of matter
the electric attraction between protons and electrons hold the atom together
A positive ion
more protons than electrons
A negative ion
More electrons than protons
The universal principle of charge conservation
The algebraic sum of all the electric charges in any closed system is a constant
Coulombs
measurement of charge
A conductor
permits the easy movement of charge through it
An insulator
doesn't allow movement of charge through it
Semi-conductors
intermediate in their properties between good conductors and good insulators
Electric force on uncharged objects
The charge within an insulator can shift slightly, so 2 neutral objects may exert electric forces on each other
Coulombs law
used to calculated the strength of the force between 2 charged particles