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Basic measurements for the electrodynamic definition of the ampere /
Basic measurements for the electrodynamic definition of the ampere

Basic measurements for the electrodynamic definition of the ampere

VP3.3.3.4

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Description

The object of the experiment P3.3.3.4 is the former electrodynamic definition of the ampere. Here, the current is defined on the basis of the force exerted between two parallel conductors of infinite length which carry an identical current. When r represents the distance between the two conductors, the force per unit of length of the conductor is:

This experiment uses two conductors approx. 30 cm long, placed just a few millimeters apart. The forces F are measured as a function of the different current levels I and distances r.

Components of equipment sets

1	314265 4	Support for conductor loops
1	51633	Conductors for Ampere definition
1	51631 8	Vertically adjustable stand
1	726890 8	DC power supply unit 1...32 V/0...20 A
1	524005W2	Mobile-CASSY 2 WiFi
1	524060 8	Force sensor S, ±1N
1	30002 4	Stand base, V-shaped, small
1	30042 4	Stand rod, 47 cm, 12 mm diam.
1	30101 4	Leybold multiclamp
1	50126 4	Connecting lead, 32 A, 50 cm, blue
1	50130 8	Connecting lead, 32 A, 100 cm, red
1	50131 4	Connecting lead, 32 A, 100 cm, blue

Experiment Instructions

PDF (Description from CASSY Lab)

P3.3.3.4 Basic measurements for the electrodynamic definition of the ampere

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Basic measurements for the electrodynamic definition of the ampere

Description

Components of equipment sets

Experiment Instructions

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