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Self-heating and temperature sensitivity in wire-wound resistors

Self-heating and temperature sensitivity in wire-wound resistors

LP3.3.6.1

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Description

The students explore the way in which the resistance of a metal changes when it is heated. To do this, they use different wires of different alloys and realise that the temperature dependence of the resistance is material-specific.

Components of equipment sets

1	56718 4	Wrapping plate for wires
1	57913 8	Toggle switch STE 2/19
1	57681 4	Plug-in board safety socket, 20/10
2	500621 4	Safety experiment cable, 50 cm, red
1	500624 4	Safety experiment cable, 50 cm, black
2	500622 4	Safety experiment cable, 50 cm, blue
1	500622 4	Safety experiment cable, 50 cm, blue
2	531120	Multimeter LDanalog 20
1	521488	AC/DC power supply 0...12 V/3 A
1	55047 8	Chrome-nickel resistance wire, 0.35 mm diameter, 100 m
1	55051 4	Iron resistance wire, 0.2 mm diameter, 100 m

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Self-heating and temperature sensitivity in wire-wound resistors

Description

Components of equipment sets

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