ε0 is a constant called the \_________ and is given ε0 \= 8.85 × 10−12C²/N · m².
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Definition of an electric field
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Newton/Coloumb
SI Units for Electric Field.
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F \= qE
Force on a point charge q in an electric field E
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Magnitude of electric field due to a point charge
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Principle of superposition for the electric field
The electric field at a location in space due to a number of point charges Q1, . . . , QN is equal to the vector sum of the electric field produced by each of the individual point charges Q1, . . . , QN at that location in space.
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Electric field lines
Lines (or curves) drawn such that acceleration. If a particle were moving along a curved electric field line, because the force is parallel to the field line, there would be no force providing the radial acceleration—this would be impossible.
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Electric Field due to a positive point of charge
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Electric Field due to an infinite positively charged sheet
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Electric Field due to two unlike point charges, positive on the left, negative on the right.
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Electric Field due to two positive point charges
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Lines
These represent the direction of the force.
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+Q
This attracts a negative charge on the sphere and repels positive charge on the sphere.
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net attractive force
Because the electrostatic force is inversely proportional to (distance)², this causes the attraction between +Q and the negative charge on the sphere to be greater than the repulsion between +Q and the positive charge on the sphere, giving rise to a \_________.
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Definitions of potential and voltage
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Volts
The units of potential and change in the potential energy of voltage
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Relationship between potential and electric field with the integration path along the x-axis
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Principle of superposition for potential
The potential at a point due to a number of charges is equal to the sum of the potentials at that point due to each of the individual charges.
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The superposition of electric fields leads to the superposition of potentials.
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