Objective: Verification of Ohm’s law
In simple electrical conductors, the current I which passes through the conductor is proportional to the applied voltage U. The constant of proportionality, the ohmic resistance R, is dependent on the length x of the conductor, its cross-sectional area A and the nature of the material. This relationship is to be investigated using constantan and brass wires.
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![Clamp with Hook, 1002828 [U13252], Clamps](/thumblibrary/U13252/U13252_01_140_140_Clamp-with-Hook.jpg)
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![Tripod Stand 150 mm, 1002835 [U13270], Bases](/thumblibrary/U13270/U13270_01_140_140_Tripod-Stand-150-mm.jpg)
![Resistance Apparatus, 1009949 [U8492030], Circuits](/thumblibrary/U8492030/U8492030_01_140_140_Resistance-Apparatus.jpg)
![Pair of Safety Experiment Leads, 75 cm, blue, red, 1017718 [U13816], Experiment Leads and Cables](/thumblibrary/U13816/U13816_01_140_140_Pair-of-Safety-Experiment-Leads-75-cm-blue-red.jpg)
![Calipers, 150 mm, 1002601 [U10071], Accessory - Measurement of Length](/thumblibrary/U10071/U10071_01_140_140_Calipers-150-mm.jpg)
![Digital Stopwatch, 1002811 [U11902], Measurement of Time](/thumblibrary/U11902/U11902_01_140_140_Digital-Stopwatch.jpg)
![Universal Clamp, 1002830 [U13255], Clamps](/thumblibrary/U13255/U13255_01_140_140_Universal-Clamp.jpg)
![Barrel Foot, 1 kg, 1002834 [U13265], Bases](/thumblibrary/U13265/U13265_01_140_140_Barrel-Foot-1-kg.jpg)
![Inclined Plane -
determination of holding friction, 1003213 [U30015], Linear Motion](/thumblibrary/U30015/U30015_01_140_140_Inclined-Plane-determination-of-holding-friction.jpg)
![Force Table, 1000694 [U52004], Statics](/thumblibrary/U52004/U52004_01_140_140_Force-Table.jpg)
![Pocket Measuring Tape, 2 m, 1002603 [U10073], Accessory - Measurement of Length](/thumblibrary/U10073/U10073_01_140_140_Pocket-Measuring-Tape-2-m.jpg)
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![Set of Weights 1 g to 500 g, 1010189 [U29576], Balance Weights](/thumblibrary/U29576/U29576_01_140_140_Set-of-Weights-1-g-to-500-g.jpg)
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investigation of static and kinetic friction, 1009942 [U8405120], Friction](/thumblibrary/U8405120/U8405120_01_140_140_Friction-Measuring-Apparatus-investigation-of-static-and-kinetic-friction.jpg)