Skip to main content

MVP — interactive sketch; a fuller lab is coming later.

Electromagnet strength

How current, turns, and iron core affect electromagnet strength.

Electromagnetic phenomenaFields, electromagnets, motors, and induction conditions.

Start here

Electromagnet strength

Electromagnet strength rises with I, turns, and iron core. This “Electromagnet strength” page is an MVP interactive sketch — formulas, controls, and live readouts in the browser; a fuller bench may follow.

Electromagnet strength rises with I, turns, and iron core.

Key formulas

  • B\propto NI

How to use

  1. Adjust parameters in the left panel.
  2. Use play / pause and speed controls.
  3. Match right-side readouts to the formulas.
  4. Reset to return to the initial state.

Applications

  • Electromagnet strength: Electromagnet strength rises with I, turns, and iron core.
  • In class, tune parameters for “Electromagnet strength”, then check against the textbook result.

FAQ

What does MVP mean on this page?

An interactive sketch with formulas and parameters. Polished Ready labs are the full bench experience.

What does the “Electromagnet strength” lab practice?

Tune parameters and match readouts to the “Electromagnet strength” relations — useful for prep and demos.

How do I find the Ampere force direction?

Left-hand rule: B into palm, fingers along I, thumb along F.

When is there an induced current?

When flux through a closed loop changes, or a conductor cuts field lines.

Try the lab