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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, 2.5 mm², 1002843 [U138021], Circuits](/thumblibrary/U138021/U138021_01_140_140_Set-of-15-Safety-Experiment-Leads-75-cm-25-mm.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)
![Barrel Foot, 1 kg, 1002834 [U13265], Bases](/thumblibrary/U13265/U13265_01_140_140_Barrel-Foot-1-kg.jpg)
![Tube Holder S -
for the experimental setup of tubes of series S, 1014525 [U185002], Electron Tubes S](/thumblibrary/U185002/U185002_01_140_140_Tube-Holder-S-for-the-experimental-setup-of-tubes-of-series-S.jpg)
![Precision Dynamometer 0.1 N, 1003102 [U20030], Dynamometers](/thumblibrary/U20030/U20030_01_140_140_Precision-Dynamometer-01-N.jpg)
![Switch on 3B-Box, 1010139 [U29511], Circuits](/thumblibrary/U29511/U29511_01_140_140_Switch-on-3B-Box.jpg)
![Button on 3B Box, 1010146 [U29518], Circuits](/thumblibrary/U29518/U29518_01_140_140_Button-on-3B-Box.jpg)
![Universal Holder on 3B Box, 1010156 [U29528], Circuits](/thumblibrary/U29528/U29528_01_140_140_Universal-Holder-on-3B-Box.jpg)
![Concave Lens N, f = -100 mm, 1000844 [U8470140], Optics on a Whiteboard](/thumblibrary/U8470140/U8470140_01_140_140_Concave-Lens-N-f-100-mm.jpg)
![Optical Lamp K, 1000863 [U8475400], Kröncke Optics](/thumblibrary/U8475400/U8475400_01_140_140_Optical-Lamp-K.jpg)