Electricity & Magnetism

Magnetic Force on Charge

F = q v B sin θ

Magnetic force on moving charge (Lorentz force).

Variables

F

Magnetic force

Force on charge

N

q

Charge

Moving charge

C

v

Velocity

Speed of charge

m/s

B

Magnetic field

Field strength

T

θ

Angle

Between v and B

°

Derivation

F = qv × B, magnitude |F| = qvB sin θ.

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