Electric Fields
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7 Terms
Coulomb’s law
Fe = ke q1 q2/r²
The direction of the electrostatic force
Determined from the observation that opposites attract and vice versa.
The principle of superposition
Applies when more than two point charges are present
The… is a distance … from a point charge …
electric field; r; q
E = ke q/r² r
Electric field lines
Lines begin on a positive charge and terminate on a negative
The number of lines leaving a pos is proportional to the magnitude of the charge
Electric field lines are related to the electric field
The electric field vector is tangent to an electric field line at each point
The number of lines per unit area is proportional to the magnitude of the electric field.
The law of conservation of charge
The total net electric charge in an isolated system remains constant; charge can neither be created nor destroyed