← All apps Magnetic Field Visualizer
Education
Explore the magnetic field around a current loop, a solenoid, or a bar magnet in full 3D, with field lines traced directly from the Biot-Savart law rather than approximated. Watch a solenoid's field flatten into the idealized "uniform interior" textbook result as you extend its length, while the field near its ends stays visibly weaker and more spread out — the real end-effect behavior most diagrams skip. A cross-section slice mode gives you a cleaner, more readable 2D map when precision matters more than the full 3D picture.
Open Magnetic Field Visualizer (magneticfield.apps.vtc.com)
About Magnetic Field Visualizer
Magnetic Field Visualizer is an interactive learning tool on VTC. Explore the magnetic field around a current loop, a solenoid, or a bar magnet in full 3D, with field lines traced directly from the Biot-Savart law rather than approximated. Watch a solenoid's field flatten into the idealized "uniform interior" textbook result as you extend its length, while the field near its ends stays visibly weaker and more spread out — the real end-effect behavior most diagrams skip. A cross-section slice mode gives you a cleaner, more readable 2D map when precision matters more than the full 3D picture. It runs in your web browser and is free to use, and suits students, teachers and self-learners.
Who it's for: Students, teachers and self-learners
Features
- Explore the magnetic field around a current loop, a solenoid, or a bar magnet in full 3D
- Field lines traced directly from the Biot-Savart law rather than approximated
- The real end-effect behavior most diagrams skip
- A cross-section slice mode gives you a cleaner, more readable 2D map when precision matters more than the full 3D picture
- Free to use in your browser
Frequently asked questions
What is Magnetic Field Visualizer on VTC?
Magnetic Field Visualizer is an interactive learning tool on VTC. Explore the magnetic field around a current loop, a solenoid, or a bar magnet in full 3D, with field lines traced directly from the Biot-Savart law rather than approximated. Watch a solenoid's field flatten into the idealized "uniform interior" textbook result as you extend its length, while the field near its ends stays visibly weaker and more spread out — the real end-effect behavior most diagrams skip.
Is Magnetic Field Visualizer free to use?
Yes. The VTC app catalog lists Magnetic Field Visualizer at no cost, and it runs in your web browser with nothing to install.
Who is Magnetic Field Visualizer for and how do I start?
It is aimed at students, teachers and self-learners. To start, open https://magneticfield.apps.vtc.com in your browser.