Ohm's law
I = U/R for linear resistors; power P = UI = U²/R with animated current flow.
DC circuitsInstrument reading, resistivity, Ohm’s law, EMF, RC.
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Ohm's law
Ohm's law: I = U/R for linear resistors, with power P = UI = U²/R. Adjust voltage and resistance to see current change.
Ohm's law: I = U/R for linear resistors; power P = UI = U²/R.
Key formulas
I=\frac{U}{R}P=UI=\frac{U^2}{R}
How to use
- Set voltage U and resistance R.
- Watch current flow (green dots speed and count scale with I).
- Verify I = U/R and P = U²/R in the readouts.
Applications
- Ohm's law: Ohm's law: I = U/R for linear resistors; power P = UI = U²/R.
- Classroom focus: power P = UI = U²/R with animated current flow.
FAQ
What happens when voltage increases?
With fixed R, I scales linearly with U and power P grows as U².
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 “Ohm's law” lab practice?
Tune parameters and match readouts to the “Ohm's law” relations — useful for prep and demos.
How do I connect meters?
Ammeter in series; voltmeter in parallel — watch polarity and range.