How to use the magnetic force on a moving charge calculator
Find the force on a charge moving in a magnetic field. Enter charge, speed, magnetic field, angle in the fields above; the force is computed instantly and plotted on the chart so you can see how the answer changes.
Formula
Variables
- q — Charge (µC)
- v — Speed (m/s)
- B — Magnetic field (T)
- ang — Angle (°)
Worked example
With charge = 2 µC, speed = 5000 m/s, magnetic field = 0.5 T, angle = 90 °, the calculator gives force ≈ 0.005 N.
Frequently asked questions
What is the formula for the magnetic force on a moving charge calculation?
Force (N) = q × 1e-6 × v × B × sin(ang). Here q is charge (µC), v is speed (m/s), B is magnetic field (T), ang is angle (°).
What inputs do I need for the magnetic force on a moving charge calculator?
You need charge in µC, speed in m/s, magnetic field in T, angle in °. Each field is pre-filled with a typical example so you can see how the result responds as you edit the numbers.
How do I use this calculator?
Type values into the input fields. Results and the chart update instantly. Use Reset to restore the example values, Copy results to paste them elsewhere, or Share to copy a link that preserves your inputs.
Is the result exact?
Calculations use standard formulas and double-precision arithmetic, then display about seven significant figures. Real-world measurements carry uncertainty, so treat results as estimates unless your inputs are exact.