Measuring bulb electric power
P = UI; rated vs actual power with a rheostat.
Electricity (junior)Junior circuits: meters, series/parallel, Ohm’s law intro.
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Measuring bulb electric power
Bulb power P = UI; actual power depends on voltage. Explore “Measuring bulb electric power” interactively in the browser and match readouts to the formulas.
Bulb power P = UI; actual power depends on voltage.
Key formulas
P=UIP=I^2R
How to use
- Adjust parameters in the left panel.
- Use play / pause and speed controls.
- Match right-side readouts to the formulas.
- Reset to return to the initial state.
Applications
- Measuring bulb electric power: Bulb power P = UI; actual power depends on voltage.
- In class, tune parameters for “Measuring bulb electric power”, then check against the textbook result.
FAQ
What does the “Measuring bulb electric power” lab practice?
Tune parameters and match readouts to the “Measuring bulb electric power” 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.
Series vs parallel current and voltage?
Series: same I, voltages add. Parallel: same U, branch currents add.