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Unit 4: Electric Circuits

AP Physics C: Electricity and Magnetism — Note Packet

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Key Terms

Magnetic Field ('B' field)

An invisible force field that exerts a force on ________ charges.

Lorentz Force

The force exerted by a magnetic field on a moving charge, calculated by F = qvBsinθ or **F** = q(**v** x **B**), where the force is ________ to both **v** and **B**.

Right-Hand Rule (RHR)

A mnemonic used to determine the ________ of the magnetic force on a positive charge (fingers **v**, curl to **B**, thumb **F**) or the direction of magnetic field lines around a current (thumb current, fingers field).

Teslas (T)

The SI unit of measurement for ________ field strength.

Current Element (IdL)

A tiny vector segment representing a small portion of a current-carrying wire, used in the ________-Savart Law.

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