3D AC Generator & Motor

3D AC Generator & Motor

A 3D interactive simulation of a rotating coil in a magnetic field. Orbit the camera to view from any angle. The same physics as the 2D generator, but with spatial 3D visualization.

What You See

• Red block (N) and blue block (S): magnetic pole pieces
• Red arrows: magnetic field lines B from N to S
• Cyan rectangle: the rotating coil — edges change color to show current direction
• Green arrow: coil normal vector n̂ — when aligned with B, flux is maximum
• Yellow dots: current flow particles — speed and brightness indicate current magnitude
• Semi-transparent green face: brightness indicates flux through the coil

Controls

• Orbit: Click and drag to rotate the camera around the generator
• Zoom: Scroll to zoom in/out
• Pan: Right-click drag to pan
• Sliders: Adjust field strength, turns, area, speed, load, and mode
• Presets: Quick-switch between AC, DC, 3-phase, motor, and more

Try These

1. Orbit to side view: See the coil edge-on at θ=90° — maximum EMF, zero flux.
2. Orbit to front view: See the coil face-on at θ=0° — zero EMF, maximum flux.
3. Watch current particles: They flow faster when current is high, dim when current is low.
4. DC Motor preset: Watch the coil spin up from rest under its own torque.
5. Change RPM: Faster rotation = higher peak EMF (visible in readout).

For graphs (time series, phase plots, waveforms), see the 2D generator simulation.