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

Joule’s law

Q = I²Rt — how I, R, and t affect heating.

Electricity (junior)Junior circuits: meters, series/parallel, Ohm’s law intro.

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Joule’s law

Joule's law: heat Q = I²Rt. This “Joule’s law” page is an MVP interactive sketch — formulas, controls, and live readouts in the browser; a fuller bench may follow.

Joule's law: heat Q = I²Rt.

Key formulas

  • Q=I^2Rt

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

  • Joule’s law: Joule's law: heat Q = I²Rt.
  • In class, tune parameters for “Joule’s law”, 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 “Joule’s law” lab practice?

Tune parameters and match readouts to the “Joule’s law” relations — useful for prep and demos.

How do I connect meters?

Ammeter in series; voltmeter in parallel — watch polarity and range.

When does Ohm’s law apply?

For ohmic conductors I=U/R; nonlinear devices need their own curves.

Try the lab