Current-carrying coil — magnetic field & iron core effect
Solenoid
Increase current to switch on the electromagnet.
B = μ₀ × n × I
0.00 mT
🔩 Drag the iron rod into the solenoid
Current I5 A
Turns N8
Iron Core
♿ Accessibility (SEND)
🔤 Text Size
👁 Visual
High Contrast
Dyslexia Spacing
Reading Ruler
🌈 Irlen Overlay
🎬 Motion
Reduce Motion
Extra Slow (×0.3)
⌨️ Keyboard
↑ / ↓ — Increase / decrease current R — Reverse current I — Toggle iron core L — Toggle labels Space — Play / Pause Drag — Orbit view Scroll / Pinch — Zoom Dbl-click — Reset view Esc — Close panel