Ohm's Law Lab: Resistor, Potentiometer and Two Meters
A 21.4 V battery across a 5 kΩ potentiometer sets the voltage on a 341.88 Ω resistor. An inline ammeter reads the current and an inline voltmeter the…
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Cuba demo kelas percumaHow it works
Turn the potentiometer knob and watch both displays: the V meter across the 341.88 Ω resistor shows its voltage and the A meter, in series below it, shows the current through it.
Divide the two readings at any position and you get about 342 Ω every time, which is Ohm's law (V = I × R). Plot V against I and the slope of the straight line is the resistance.
What's inside
- 1× Battery
- 1× Resistor (342 Ω)
- 1× Potentiometer
- Measured with Voltmeter/Ammeter
