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)
![装管, 1002622 [U10146], Tubing](/thumblibrary/U10146/U10146_01_140_140_装管.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)
![K－型 锂铬－锂插入式传感器,测量范围－65到550℃, 1002804 [U11854], 温度计](/thumblibrary/U11854/U11854_01_140_140_K-型-锂铬-锂插入式传感器-测量范围-65到550.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)
![15根安全实验导线套件，75mm, 1002843 [U138021], 电循环](/thumblibrary/U138021/U138021_01_140_140_15根安全实验导线套件-75mm.jpg)
![成对安全实验导线，75cm, 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.jpg)
![Teltron 管座 S, 1014525 [U185002], 电子管 S](/thumblibrary/U185002/U185002_01_140_140_Teltron-管座-S.jpg)
![电子衍射试管, 1013889 [U185711], 电子管S](/thumblibrary/U185711/U185711_01_140_140_电子衍射试管.jpg)
![Vacuum Hand Pump, 1012856 [U205001], 真空泵](/thumblibrary/U205001/U205001_01_140_140_Vacuum-Hand-Pump.jpg)
![Helium-Neon Laser, 1003165 [U21840], 物理固体激光器](/thumblibrary/U21840/U21840_01_140_140_Helium-Neon-Laser.jpg)
![直流电源0 – 20 V, 0 – 5 A (230 V, 50/60 Hz), 1003312 [U33020-230], 供电器](/thumblibrary/U33020-230/U33020-230_01_140_140_直流电源0-20-V-0-5-A-230-V-5060-Hz.jpg)
![Thermometer clip, 1003528 [U8452570], 温度计](/thumblibrary/U8452570/U8452570_01_140_140_Thermometer-clip.jpg)
![探针麦克风,长, 1017342 [U8498282], 声学](/thumblibrary/U8498282/U8498282_01_140_140_探针麦克风-长.jpg)
![麦克风探针,短, 4008308 [U8498307], 声学](/thumblibrary/U8498307/U8498307_01_140_140_麦克风探针-短.jpg)
![昆特管E, 1017339 [U8498308], 声学](/thumblibrary/U8498308/U8498308_01_140_140_昆特管E.jpg)
![Experiment: Speed of sound in air (230 V, 50/60 Hz), 8000567 [UE1070310-230], Acoustics](/thumblibrary/UE1070310-230/UE1070310-230_01_140_140_Experiment-Speed-of-sound-in-air-230-V-5060-Hz.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: Charging and Discharging a Capacitor (230 V, 50/60 Hz), 8000635 [UE3050101-230], Direct and alternating current (DC and AC)](/thumblibrary/UE3050101-230/UE3050101-230_01_140_140_Experiment-Charging-and-Discharging-a-Capacitor-230-V-5060-Hz.jpg)