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Unit 2: Electric Potential

AP Physics C: Electricity and Magnetism — Note Packet

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Key Terms

Electric Potential

The electric potential energy per unit _______, measured in _______ and is a _______ quantity (not a vector).

Superposition of Potential

When multiple charges are present, the total potential is found by _______ addition of individual potentials, with no _______ components needed.

Electric Field-Potential Relationship

Electric field equals the _______ gradient of electric potential: E = -_______. Field points in the direction of _______ potential.

System Potential Energy

The total potential energy of a system of charges, calculated by summing interaction energies of all _______ without _______-counting.

Equipotential Surfaces

Surfaces where every point has the same electric potential, always _______ to electric field lines. Spacing indicates field _______.

Conductor Equilibrium

In electrostatic equilibrium, conductors become _______ objects with _______ electric field inside.

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