Objective: Determining impedance in a circuit with an inductive and a capacitive reactance
AC circuits with inductive and capacitive reactances show resonant behaviour. At the resonant frequency, the impedance of a series connection of an inductive and a capacitive reactance is zero, whereas the impedance of a parallel connection is infinite. This experiment examines this phenomenon with the help of an oscilloscope and a function generator which supplies voltages between 50 Hz and 20,000 Hz.
![Experiment: Impedances (230 V, 50/60 Hz), 8000650 [UE3050321-230], Direct and alternating current (DC and AC)](/imagelibrary/UE3050321-230/UE3050321-230_01_Experiment-Impedances-230-V-5060-Hz.jpg)
![Experiment: Impedances (230 V, 50/60 Hz), 8000650 [UE3050321-230], Direct and alternating current (DC and AC)](/imagelibrary/UE3050321-230/UE3050321-230_02_Experiment-Impedances-230-V-5060-Hz.jpg)
![Experiment: Impedances (230 V, 50/60 Hz), 8000650 [UE3050321-230], Direct and alternating current (DC and AC)](/thumblibrary/UE3050321-230/UE3050321-230_01_1200_1200_Experiment-Impedances-230-V-5060-Hz.jpg)
![Experiment: Impedances (230 V, 50/60 Hz), 8000650 [UE3050321-230], Direct and alternating current (DC and AC) (Small)](/thumblibrary/UE3050321-230/UE3050321-230_02_1200_1200_Experiment-Impedances-230-V-5060-Hz.jpg)
![干涉仪, 1002651 [U10350], 干涉计](/thumblibrary/U10350/U10350_01_140_140_干涉仪.jpg)
![用于干涉仪的附加装置, 1002652 [U10351], 干涉计](/thumblibrary/U10351/U10351_01_140_140_用于干涉仪的附加装置.jpg)
![带有加热器的磁化搅动装置（230 V, 50/60 Hz）, 1002807 [U11875-230], 电磁搅拌器](/thumblibrary/U11875-230/U11875-230_01_140_140_带有加热器的磁化搅动装置-230-V-5060-Hz.jpg)
![成对安全实验导线，75cm, 2,5 mm², 1002849 [U13812], 实验用导线和电缆](/thumblibrary/U13812/U13812_01_140_140_成对安全实验导线-75cm-2-5-mm.jpg)
![High-Quality Vacuum Hand Pump, 1012856 [U205001], 真空泵](/thumblibrary/U205001/U205001_01_140_140_High-Quality-Vacuum-Hand-Pump.jpg)
![Helium-Neon Laser, 1003165 [U21840], 位于支架上的光学灯](/thumblibrary/U21840/U21840_01_140_140_Helium-Neon-Laser.jpg)
![高压电源5kV（230 V，50/60 Hz）, 1003310 [U33010-230], 供电器](/thumblibrary/U33010-230/U33010-230_01_140_140_高压电源5kV-230-V-5060-Hz.jpg)
![Thermometer clip, 1003528 [U8452570], 温度计](/thumblibrary/U8452570/U8452570_01_140_140_Thermometer-clip.jpg)
![加热棒K, 1017340 [U8498280], 声学](/thumblibrary/U8498280/U8498280_01_140_140_加热棒K.jpg)
![探针麦克风,长, 1017342 [U8498282], 声学](/thumblibrary/U8498282/U8498282_01_140_140_探针麦克风-长.jpg)
![麦克风盒(230 V, 50/60 Hz), 1014520 [U8498283-230], 声学](/thumblibrary/U8498283-230/U8498283-230_01_140_140_麦克风盒-230-V-5060-Hz.jpg)
![微妙计数器(230 V, 50/60 Hz), 1017333 [U8498285-230], 声学](/thumblibrary/U8498285-230/U8498285-230_01_140_140_微妙计数器-230-V-5060-Hz.jpg)
![昆特管E, 1017339 [U8498308], 声学](/thumblibrary/U8498308/U8498308_01_140_140_昆特管E.jpg)
![HF Patch Cord, BNC/4 mm Plug, 4008293 [U8557626], 实验用导线和电缆](/thumblibrary/U8557626/U8557626_01_140_140_HF-Patch-Cord-BNC4-mm-Plug.jpg)
![热传导实验(230 V, 50/60 Hz), 8000581 [UE2020100-230], Heat transport](/thumblibrary/UE2020100-230/UE2020100-230_01_140_140_热传导实验-230-V-5060-Hz.jpg)
![Experiment: Stirling Engine D (230 V, 50/60 Hz), 8000595 [UE2060100-230], Thermodynamic cycles](/thumblibrary/UE2060100-230/UE2060100-230_01_140_140_Experiment-Stirling-Engine-D-230-V-5060-Hz.jpg)
![洛伦磁力(230 V, 50/60 Hz), 8000621 [UE3030300-230], Magnetic fields](/thumblibrary/UE3030300-230/UE3030300-230_01_140_140_洛伦磁力-230-V-5060-Hz.jpg)
![Experiment: Magnetic field of a cylindrical coil (230 V, 50/60 Hz), 8000622 [UE3030500-230], Magnetic fields](/thumblibrary/UE3030500-230/UE3030500-230_01_140_140_Experiment-Magnetic-field-of-a-cylindrical-coil-230-V-5060-Hz.jpg)
![Experiment: Transformers (230 V, 50/60 Hz), 8000633 [UE3040500-230], Induction](/thumblibrary/UE3040500-230/UE3040500-230_01_140_140_Experiment-Transformers-230-V-5060-Hz.jpg)
![Experiment: Electron Diffraction (230 V, 50/60 Hz), 8000704 [UE5010500-230], Fundamentals of Atomic Physics](/thumblibrary/UE5010500-230/UE5010500-230_01_140_140_Experiment-Electron-Diffraction-230-V-5060-Hz.jpg)