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What is an electric field?
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A region of space around a charged particle where an electric force is exerted on other charged particles.
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Define electric lines of force.
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Imaginary lines representing the direction of the electric field around charged objects.
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What is the direction of an electric field?
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Away from positive charges and towards negative charges.
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Describe the properties of electric field lines.
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They never cross, begin on positive charges, end on negative charges, and their density indicates field strength.
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What is Coulomb's Law?
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A law stating that electric force between charges is proportional to the product of the charges and inversely proportional to the square of the distance between them.
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How can electric fields be visualized?
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Using field lines that illustrate the direction and strength of the field.
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What is electric field strength?
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The force per unit charge experienced by a small test charge placed in the field.
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What is a point charge?
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A charged particle considered to have its entire charge concentrated at a single point.
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How do electric fields interact with conductors?
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Charge rearranges on the surface of a conductor until the electric field inside is zero.
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What is the relationship between electric field and electric potential?
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Electric field is the negative gradient of electric potential.
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Define electric dipole.
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A pair of equal and opposite charges separated by a distance, having a fixed orientation.
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Discuss the superposition principle in electric fields.
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The resultant field at any point is the vector sum of fields due to all charges present.
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What is an equipotential surface?
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A surface on which the electric potential is the same at every point.
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How does an electric field influence charged particles?
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By exerting a force that affects the motion of the particles.
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What is Gauss's Law?
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A law relating the distribution of electric charge to the resulting electric field, stating the net flux through a closed surface is proportional to the enclosed charge.
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