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The voltmeter as an ohmic resistor in a circuit

The voltmeter as an ohmic resistor in a circuit

VP3.2.4.2

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Description

The experiment P3.2.4.2 determines the internal resistance of a voltmeter by measuring the current flowing through it. In this experiment, the measuring range is extended by connecting a second resistor with a value equal to the internal resistance to the voltmeter in series.

Components of equipment sets

1	521488	AC/DC power supply 0...12 V/3 A
1	57681 4	Plug-in board safety socket, 20/10
1	57752 4	Resistor 4.7 kOhm, STE 2/19
1	57775 4	Resistor, 680 kΩ, STE 2/19
1	57771 4	Resistor, 220 kΩ, STE 2/19
2	531110 4	Multimeter LDanalog 10
3	500621 4	Safety experiment cable, 50 cm, red
3	500622 4	Safety experiment cable, 50 cm, blue

Experiment Instructions

PDF (Experiment description)

P3.2.4.2 The voltmeter as an ohmic resistor in a circuit

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The voltmeter as an ohmic resistor in a circuit

Description

Components of equipment sets

Experiment Instructions

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