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Experiment: Inverse square law (230 V, 50/60 Hz)
Experiment: Inverse square law (115 V, 50/60 Hz)
![Ruler, 1 m, 1000742 [U8401550], Hand-held Analog Measuring Instruments](/imagelibrary/U8401550/U8401550_01_Ruler-1-m.jpg)
![Ruler, 1 m, 1000742 [U8401550], Hand-held Analog Measuring Instruments](/imagelibrary/U8401550/U8401550_02_Ruler-1-m.jpg)
![Ruler, 1 m, 1000742 [U8401550], Hand-held Analog Measuring Instruments](/thumblibrary/U8401550/U8401550_01_1200_1200_Ruler-1-m.jpg)
![Ruler, 1 m, 1000742 [U8401550], Hand-held Analog Measuring Instruments (Small)](/thumblibrary/U8401550/U8401550_02_50_50_Ruler-1-m.jpg)
![Experiment: Inverse square law (230 V, 50/60 Hz), 8000691 [UE4050100-230], Intensity of Radiation](/thumblibrary/UE4050100-230/UE4050100-230_01_140_140_Experiment-Inverse-square-law-230-V-5060-Hz.jpg)
![Experiment: Inverse square law (115 V, 50/60 Hz), 8000690 [UE4050100-115], Intensity of Radiation](/thumblibrary/UE4050100-115/UE4050100-115_01_140_140_Experiment-Inverse-square-law-115-V-5060-Hz.jpg)
![Set of Riders for Rulers, 1006494 [U8401570], Measurement of Length](/thumblibrary/U8401570/U8401570_01_140_140_Set-of-Riders-for-Rulers.jpg)
![Set of 15 Safety Experiment Leads, 75 cm, 1002843 [U138021], Circuits](/thumblibrary/U138021/U138021_01_140_140_Set-of-15-Safety-Experiment-Leads-75-cm.jpg)
![Barrel Foot, 900 g, 1001045 [U8611200], Tripods and Barrel Feet](/thumblibrary/U8611200/U8611200_01_140_140_Barrel-Foot-900-g.jpg)
![Barrel Foot, 500 g, 1001046 [U8611210], Tripods and Barrel Feet](/thumblibrary/U8611210/U8611210_01_140_140_Barrel-Foot-500-g.jpg)
![Digital Multimeter P1035, 1002781 [U11806], Hand-held Digital Measuring Instruments](/thumblibrary/U11806/U11806_01_140_140_Digital-Multimeter-P1035.jpg)
![DC Galvanometer, 1002790 [U11814], Hand-held Analog Measuring Instruments](/thumblibrary/U11814/U11814_01_140_140_DC-Galvanometer.jpg)
![Precision Dynamometer 1 N, 1003104 [U20032], Dynamometers](/thumblibrary/U20032/U20032_01_140_140_Precision-Dynamometer-1-N.jpg)
![DC Power Supply 20 V, 5 A
(230 V, 50/60 Hz), 1003312 [U33020-230], Power Supplies](/thumblibrary/U33020-230/U33020-230_01_140_140_DC-Power-Supply-20-V-5-A-230-V-5060-Hz.jpg)
![Thermopile, 1000824 [U8441301], Greenhouse Effect](/thumblibrary/U8441301/U8441301_01_140_140_Thermopile.jpg)
![Halogen Lamp 12 V, 20 W, 1003533 [U8475410], Kröncke Optics](/thumblibrary/U8475410/U8475410_01_140_140_Halogen-Lamp-12-V-20-W.jpg)
![Stefan Boltzmann lamp, 1008523 [U8490050], Optical Lamps on Stem](/thumblibrary/U8490050/U8490050_01_140_140_Stefan-Boltzmann-lamp.jpg)
![Light Metal Tuning Fork, 1700 Hz, 1002607 [U10115], Tuning Forks](/thumblibrary/U10115/U10115_01_140_140_Light-Metal-Tuning-Fork-1700-Hz.jpg)
![Precision Dynamometer 0.1 N, 1003102 [U20030], Dynamometers](/thumblibrary/U20030/U20030_01_140_140_Precision-Dynamometer-01-N.jpg)
![Laser Module, Green, 1003202 [U22001], Optical Lamps on Stem](/thumblibrary/U22001/U22001_01_140_140_Laser-Module-Green.jpg)
![Button on 3B Box, 1010146 [U29518], Circuits](/thumblibrary/U29518/U29518_01_140_140_Button-on-3B-Box.jpg)
![DC Power Supply 0-500 V (230 V, 50/60 Hz), 1003308 [U33000-230], Power Supplies](/thumblibrary/U33000-230/U33000-230_01_140_140_DC-Power-Supply-0-500-V-230-V-5060-Hz.jpg)
![Optical Bench K, 1000 mm, 1009696 [U8475240], Kröncke Optics](/thumblibrary/U8475240/U8475240_01_140_140_Optical-Bench-K-1000-mm.jpg)
![Optical Rider K, 1000862 [U8475350], Kröncke Optics](/thumblibrary/U8475350/U8475350_01_140_140_Optical-Rider-K.jpg)
![Convex Lens K, f = 100 mm, 1010300 [U8475911], Kröncke Optics](/thumblibrary/U8475911/U8475911_01_140_140_Convex-Lens-K-f-100-mm.jpg)
![Constantan Wire 0,2 mm / 100 m, 1000955 [U8495527], Circuits](/thumblibrary/U8495527/U8495527_01_140_140_Constantan-Wire-0-2-mm-100-m.jpg)