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Kirchhoff's Law » Physics » Electricity » Kirchhoff's Laws » Go on... » Experiment 14 - Resistor Cube

Experiment 14 - The resistor Cube

The resistor cube consists of twelve equal resistors R. The resistors are soldered in a cube, so that each side of the cube has the resistance R (in this experiment R = 1 kΩ).

How large is the resistance between the nodes of a space diagonal (for example A and B)?

Resistor cube. (Enlarge)

The resistor cube can also be realized on your breadboard...

Circuit resistor cube. (Enlarge)

Circuit diagram resistor cube.

With a multimeter you measure the resistance Rtotal between A and B...

Rtotal = 5/6 R = 833 Ω

However, can you also calculate the resistance Rtotal? For this you use Kirchhoff's laws, Ohm's law and the symmetry of the cube...

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