Breckland Scientific 2023 Catalogue

Magnetism&Electromagnetism

Magnets

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2 MAGNETIC FIELD PATTERN A transparent frame containing magnetic powder in a water based solution for showing magnetic field patterns. When a magnet is present the particles of iron inside become slightly magnetised, so they attract each other and cluster into the lines that show the magnetic field patterns. Includes a pair of of small ferrite block magnets and a pair of plastic cased bar magnets and teacher’s leaflet. Size: 225 x 130 x 15mm. Cat No. Description Price Per MFL-400-100 Magnetic Field Pattern 39.98 ea. 3 LODESTONE A small, walnut-sized sample of this naturally occurring magnetic iron ore, Lodestone is a form of the mineral Magnetite. Cat No. Description Price Per MFL-300-100 Lodestone 6.38 ea. 4 LOGIT MAGNETIC FIELD SENSOR With a hall probe. Can be used to investigate the magnetic field through a coil and electromagnetic induction. Range: +/- 90mT., With a hall probe. Can be used to investigate the magnetic field through a coil and electromagnetic induction. Range: +/- 90mT. For Dataloggers & other sensors see pages 131 - 143. Cat No. Description Price Per DAT-400-025 LogIT Magnetic Field Sensor 75.51 ea. 5 CIRCULAR COIL This apparatus offers a clear and easy way to observe magnetic fields generated by a constant electrical current. A coil with 94 turns of 1 mm dia. copper wire is mounted on a base. Iron filings can be scattered on the clear plastic sheet which passes through the coil and when a current then flows around the coil, the magnetic lines of a force will be shown by the alignment of the filings. The apparatus can also be used in conjunction with a compass, magnetic field sensor or datalogger. Requires a high current laboratory power supply (5A or more) for best effect. Cat No. Description Price Per MFL-388-100 Circular Coil 61.25 ea. 6 IRON FILINGS ‘BUBBLES’ A pack of 10 round, clear plastic casings (‘bubbles’) containing iron filings, providing a clean and clear means of observing magnetic fields when used in conjunction with a magnet. Each bubble is 85mm diameter. Cat No. Description Price Per MFL-220-100 Iron Filings Bubbles 15.80 10pk 1 ALNICO MAJOR MAGNET This is the original Major magnet, from a UK supplier, and is an extremely powerful but precision permanent magnet assembly. The Alnico Major Magnet comprises a large, very sturdy C-shaped alnico magnet (Aluminium/Nickle/Cobalt) with high quality ferromagnetic (steel) poles. The assembly is precisely magnetised and adjusted to give a 2000 Gauss field reading in the air gap between the steel poles (equivalent to 2 kG, 200 mT or 0.2 Tesla). The Alnico magnetic material has excellent thermal characteristics, with a maximum operating temperature of 550 degrees C and good corrosion resistance. The pole/air gap between the steel poles is 27.3 mm, which makes it suitable for use in applications which require a magnetic field strength of known value in an air gap . Typical applications in industry include mass spectrometry, medical experiments, sensor designs, and generator experiments whilst in education it can be used for flux density measurements, eddy current dampening, Fleming’s (Pohl’s) swing, magnetising ferromagnetic materials, deflecting electron beams and demonstration of moving coil meters. Supplied with magnet keeper. Dimensions: 111 mm high x 103.5 mm wide x 50 mm thick Weight: 2.9 kg Cat No. Description Price Per MAG-560-100 Alnico Major Magnet 435.12 ea.

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Major Magnet

Magnetic Fields

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Magnetic Field Pattern

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Magnetic Field Sensor

Lodestone

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Iron Filings Bubble

Circular Coil

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