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Electric field strength
The strength of an electric field E describes the magnitude and direction of the force that electric charges exert on each other.
Explanation
An electric field surrounds an electric charge, and exerts force on other charges in the field, attracting or repelling them. It is a vector quantity that plays a role in electromagnetic field theory.
Example 1
The Maxwell equation of the electric field is
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where
E Electric field ε0 Electric constant D Electric displacement P Polarization