5. Electrostatics & Magnetism (7%)

Fundamental Unit of Charge (charge of an electron/proton)

Coulomb’s Law // Electrostatic Force (force felt by test charge)

Electric Field (2)

Electric Field units

Electric Potential Energy

Electric Potential(2)

Electric Potential units

Potential Difference (voltage)

• variables: work needed to move a test charge through an electric field from point (a) to point (b), charge

Magnetic Field from a Straight Wire

• variables: permeability of free space, current, distance from the wire

Magnetic Field from a Loop of Wire

• variables: permeability of free space, current, and distance from the wire

Magnetic Force on a Moving Point Charge

• variables: charge, charge velocity, magnetic field, and the smallest angle between the velocity vector and the magnetic field vector

Magnetic Force on a Current-Carrying Wire

• variables: current, length of wire in the field, magnetic field, and the smallest angle between the length vector and the magnetic field vector