Breckland Scientific 2021 Catalogue

Magnetism

Magnetic Fields

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1 IRON FILINGS In a pepper pot for shaking out. Cat No. Description

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2

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Price Per

MFL-250-100 Iron Filings

2.33 250g

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2 MAGNETIC FIELD TUBE With a double wall with iron filings between the two layers to show a 3 dimensional view of the magnetic field around the magnet supplied. The magnet is removable and the filings are safely encased. Size: 130 x 90mm Cat No. Description Price Per MFL-450-100 Magnetic Field Tube 17.00 ea. 3 LODESTONE A walnut-sized sample of naturally magnetic iron ore. Cat No. Description Price Per MFL-300-100 Lodestone 5.80 ea. 4 SOFT IRON ROD - These soft iron rods are useful for acting as cores for electromagnet coils, as they tend not to retain any residual magnetism when the electric current is turned off - unlike steel, which does retain some magnetism. Dimensions: 200 mm long x 12 mm diameter. Cat No. Description Price Per MFL-500-100 Soft Iron Rod 3.54 ea. 5 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 33.00 ea. 6 LASCELLS HALL EFFECT PROBE The unit is ideal for measuring magnetic fields ranging from strong, permanent magnets down to weak fields such as that of the Earth. The range is -70mT to +70mT and the readout is displayed in Tesla on the integral display. Three range settings allow field strengths from 1 x 10-5T to 70mT to be displayed. The sensor output is also taken to 4mm sockets to allow a digital multi-meter (not supplied) to be connected. Output from the sensor is in the range -2.5 to +2.5V. The control circuitry and display are contained in a robust case with the sensor mounted in a 90° probe Cat No. Description Price Per MFL-555-100 Hall Effect Probe 101.54 ea. 7 LOGIT MAGNETIC FIELD SENSOR 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 70.11 ea. 8 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 53.58 ea. 9 3D COMPASS Show the magnetic field in three planes. Use in the hand or placed on a table. Size: 80 x 5 x 27mm Cat No. Description Price Per MFL-360-150 3D Compass 8.45 ea.

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Iron Fillings

Magnetic Field Tube

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Soft Iron Rod

Lodestone

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Magnetic Field Pattern

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Lascells Hall Effect Probe

Magnetic Field Sensor

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Circular Coil

3D Compass

272

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