Magnetic Force Calculator
Force on a Moving Charge
Force on a Current-Carrying Wire
Formula
F = qvB sin(θ) for a moving charge; F = ILB sin(θ) for a current-carrying wire, where q is charge, v is velocity, I is current, L is wire length, B is magnetic field, and θ is the angle.
Frequently Asked Questions
What is the magnetic force on a moving charge?
A charged particle moving through a magnetic field experiences a force perpendicular to both its velocity and the magnetic field. The magnitude is F = qvB sin(θ), where θ is the angle between v and B.
Why is the magnetic force always perpendicular to velocity?
The magnetic force is given by the cross product F = qv × B, which by definition produces a vector perpendicular to both v and B. This means the magnetic force does no work on the charged particle and only changes its direction, not its speed.
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