Frederiksen
LED kit, 5 colours 150 pcs
LED kit, 5 colours 150 pcsCombination box with both 3 and 5 mm LEDs. The set contains a total of 150 LEDs divided into 75 x 3 mm. and 75 x 5 mm.
LED, 5 mm, 20 mA, red
LED, 5 mm, 20 mA, redIncluded in 655000 Breadboard electronics set Unit: 100 pcs.
Leidenfrost dish
Leidenfrost dishDish made of steel. The dish is heated to several hundred degrees Celsius and a few drops of water are added.
Lens and aperture holder
Lens and aperture holderHolder for loose Ø 50 mm lenses and 50 x 50 mm apertures.
Lens paper
Lens paperUnit: 500 pcs.
Lenses in holder on rod, + 300 mm
Lenses in holder on rod, + 300 mmLenses mounted in a rectangular shielding sheet (100 x 100 mm) with printed focal length. Fitted with a Ø 10 mm steel rod for use with an optical bench.
Lenses in holder with base, – 200 mm
Lenses in holder with base, – 200 mmØ 40 mm lenses mounted in a shielding plate, 80 x120 mm, with a heavy, stable metal base. Focal length engraved on the plate.
Lenses in holder with base, + 200 mm
Lenses in holder with base, + 200 mmØ 40 mm lenses mounted in a shielding plate, 80 x120 mm, with a heavy, stable metal base. Focal length engraved on the plate.
Lenz’s Law kit, U-profile
Lenz’s Law kit, U-profileLenz’s Law is demonstrated in this apparatus by allowing a magnet to roll down a nearly vertical aluminium U-profile.
Lid for calorimeter
Lid for calorimeterThis lid is used together with calorimeter FR-274050, and can be used for e.g. experiment with energy conservation.
Supplied with plug for hole suitable for Pasco sensor or a plug with hole suitable for stick thermometer.
Lid for voltameter
Lid for voltameterThe lid has 2 plastic tubes which are placed over the platinum electrodes of 453000 Voltameter.
Lid with immersion heater
Lid with immersion heaterUsed with 274500 Insulated cups to confirm Joule’s law. Plastic lid with hole for inserting a thermometer. Fitted with 2.2 ohm heating element connected to 2 telephone jack sockets.
Liquid level apparatus
Liquid level apparatusThis device is used to investigate how connected vessels are affected by pressure and density.
