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Determining the impedance in circuits with capacitors and coils - Measuring with Mobile-CASSY

Determining the impedance in circuits with capacitors and coils - Measuring with Mobile-CASSY

VP3.6.3.6

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Description

The experiment P3.6.3.6 examines the oscillator circuit as the series and parallel connection of capacitance and inductance. The total impedance of the series circuit

disappears at the resonance frequency

i.e. at a given current I the total voltage U at the capacitor and the coil is zero, because the individual voltages U_C and U_L are equal and opposite. For parallel connection, we can say

At the resonance frequency, the impedance of this circuit is infinitely great; in other words, at a given voltage U the total current I in the supply line is zero, as the two individual currents I_C and I_L are equal and opposed.

Components of equipment sets

1	57681 4	Plug-in board safety socket, 20/10
1	57720 4	Resistor, 10 Ω, STE 2/19
1	57732 4	Resistor 100 Ohm, STE 2/19
1	57815 4	Capacitor, 1 µF, bipol., STE 2/19
1	57816 4	Capacitor, 4.7 µF, bipol., STE 2/19
1	59083 4	Coil 500 turns STE 2/50
1	59084 8	Coil 1000 turns STE 2/50
1	522621 4	Function generator S 12
1	524005W2	Mobile-CASSY 2 WiFi
1	524438 8	Voltage sensor M, ±30 V
3	500641 8	Safety experiment cable, 100 cm, red
2	500642 4	Safety experiment cable, 100 cm, blue
1	500644 8	Safety experiment cable, 100 cm, black

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Determining the impedance in circuits with capacitors and coils - Measuring with Mobile-CASSY

Description

Components of equipment sets

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