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Measuring the current in a coil when switching DC on and off

Measuring the current in a coil when switching DC on and off

VP3.6.2.1

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Description

In the experiment P3.6.2.1, the function generator generates periodic square-wave signals which simulate switching a DC voltage on and off. The square-wave signals are displayed on channel I of the oscilloscope, and the coil voltage or coil current is displayed on oscilloscope channel II. The aim of the experiment is to determine the time constant

for different inductances L from the exponential curve of the coil voltage U_L.

Components of equipment sets

1	57681 4	Plug-in board safety socket, 20/10
2	59084 8	Coil 1000 turns STE 2/50
1	57719 4	Resistor, 1 Ω, STE 2/19
1	57720 4	Resistor, 10 Ω, STE 2/19
1	57724 4	Resistor, 22 Ω, STE 2/19
1	57728 4	Resistor 47 Ohm, STE 2/19
1	50148 4	Bridging plugs STE 2/19, set of 10
1	522621 4	Function generator S 12
1	575302	Oscilloscope 30 MHz, digital, PT1265
2	57524 4	Screened cable, BNC/4 mm Plug
1	500641 8	Safety experiment cable, 100 cm, red
1	500642 4	Safety experiment cable, 100 cm, blue

Experiment Instructions

PDF (Experiment description)

P3.6.2.1 Measuring the current in a coil when switching DC on and off

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Measuring the current in a coil when switching DC on and off

Description

Components of equipment sets

Experiment Instructions

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