physics

Electromagnetism

Electric fields, magnetic forces, and electromagnetic waves — the unified force that powers civilization and carries all light.

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Electromagnetism is the force behind almost everything in daily life. Light, radio, chemistry, biology, electronics — all are electromagnetic phenomena. Maxwell's four equations, written in the 1860s, unified electricity and magnetism and predicted electromagnetic waves traveling at the speed of light.

These simulations explore electromagnetic phenomena. Visualize electric field lines from point charges, see magnetic fields around current-carrying wires, watch electromagnetic induction generate electricity, explore how LC circuits oscillate, and understand the force that makes motors spin and generators produce power.

5 interactive simulations

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Electric Field Lines

Visualize electric field lines from point charges. See how positive and negative charges create field patterns, with equipotential lines and animated test charges.
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Faraday's Law of Induction

Watch a rotating coil generate electricity through electromagnetic induction. See how changing magnetic flux produces EMF, synchronized with real-time waveform plots.
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LC Circuit Oscillator

Visualize energy oscillating between electric and magnetic fields in an LC circuit. Watch charge slosh between capacitor plates while current flows through the inductor.
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Lorentz Force on Charged Particles

Watch charged particles spiral through magnetic fields. Visualize the Lorentz force creating circular and helical trajectories, with adjustable mass, charge, and field strength.
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Magnetic Field Around Wires

Visualize magnetic field lines around current-carrying wires. See circular field patterns, parallel wire interactions, and the right-hand rule in action.