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Experiment: Inverse square law (230 V, 50/60 Hz)
Experiment: Inverse square law (115 V, 50/60 Hz)
![Graduated Ruler, 1 m, 1000742 [U8401550], Hand-held Analog Measuring Instruments](/imagelibrary/U8401550/U8401550_01_Graduated-Ruler-1-m.jpg)
![Graduated Ruler, 1 m, 1000742 [U8401550], Hand-held Analog Measuring Instruments](/imagelibrary/U8401550/U8401550_02_Graduated-Ruler-1-m.jpg)
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![Graduated Ruler, 1 m, 1000742 [U8401550], Hand-held Analog Measuring Instruments (Small)](/thumblibrary/U8401550/U8401550_02_50_50_Graduated-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, Moll Type, 1000824 [U8441301], Greenhouse Effect](/thumblibrary/U8441301/U8441301_01_140_140_Thermopile-Moll-Type.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)
![AC Ammeter, 1002788 [U11812], Hand-held Analog Measuring Instruments](/thumblibrary/U11812/U11812_01_140_140_AC-Ammeter.jpg)
![AC Voltmeter, 1002789 [U11813], Hand-held Analog Measuring Instruments](/thumblibrary/U11813/U11813_01_140_140_AC-Voltmeter.jpg)
![Free Fall and Horizontal Throw, 1000588 [U119831], Oblique throw](/thumblibrary/U119831/U119831_01_140_140_Free-Fall-and-Horizontal-Throw.jpg)
![Fuse Holder on 3B Box, 1010154 [U29526], Circuits](/thumblibrary/U29526/U29526_01_140_140_Fuse-Holder-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)
![Concave Lens N, f = -100 mm, 1000844 [U8470140], Optics with an Optical Bench](/thumblibrary/U8470140/U8470140_01_140_140_Concave-Lens-N-f-100-mm.jpg)
![Converging Lens K, f = +50 mm, 1000869 [U8475901], Kröncke Optics](/thumblibrary/U8475901/U8475901_01_140_140_Converging-Lens-K-f-50-mm.jpg)
![Resistance Wire - Constantan 0.4 mm, 1000957 [U8495537], Wire](/thumblibrary/U8495537/U8495537_01_140_140_Resistance-Wire-Constantan-04-mm.jpg)
![Resistance Wire - Brass 0.3 mm, 1000959 [U8495550], Wire](/thumblibrary/U8495550/U8495550_01_140_140_Resistance-Wire-Brass-03-mm.jpg)