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Charging and discharging a capacitor when switching DC on and off

Charging and discharging a capacitor when switching DC on and off

VP3.6.1.1

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Description

In the experiment P3.6.1.1, 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 capacitor voltage or capacitor current is displayed on oscilloscope channel II. The aim of the experiment is to determine the time constant

for various capacitances C from the exponential curve of the respective charging or discharge current I_C.

Components of equipment sets

1	57681 4	Plug-in board safety socket, 20/10
3	57815 4	Capacitor, 1 µF, STE 2/19
1	57740 4	Resistor 470 Ohm, STE 2/19
1	57744 4	Resistor 1 kOhm, STE 2/19
1	57748 4	Resistor, 2.2 kΩ, STE 2/19
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)

P3.6.1.1 Charging and discharging a capacitor when switching DC on and off

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Charging and discharging a capacitor when switching DC on and off

Description

Components of equipment sets

Experiment Instructions

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