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Reversing Key
Sliding contact type, with spring brass contacts on rotatable spring-loaded bakelite beam with terminals, on bakelite base. See Enlarge
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Electrical Vibrator
Also known as Melde?s apparatus. Used to study and determine frequency of A.C. mains. Consists of a steel wire passing through an armature having a horse shoe permanent magnet. Whole apparatus is mounted on a wooden base. Complete with pulley and scale pan See Enlarge
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SOLENOID (HELIX), IRON CORE
For studying magnetic induction properties produced by electric current and the effect of an iron core, etc. Consists of a plastic spool with windings of enamelled copper wire having brass binding posts on square end supports. Includes a soft iron core rod of diameter 18cm and instructions. See Enlarge
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SOLENOID (HELIX) AIR CORE
To provide external magnetic field where required and to change the rate of magnetic flux passing through a coil. Consists of a plastic spool with windings of insulated copper. End plates have brass binding posts. Capacity 10 amperes when used intermittently and 5 amperes when used continuously. See Enlarge
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PRIMARY AND SECONDARY COIL SET
For studying electromagnetic induction, ferromagnetism and principles of a transformer. Consists of two coils wound with enamelled copper wire over heavy plastic spools fitting one within the other. The inner primary coil has 1250 turns of heavy wire and the outer, acting as secondary coil with 250 turns of fine wires. Square supports of thick insulating material are used as vertical or horizontal mount. Both coils are equipped with binding posts and a soft iron core for induction studies. See Enlarge
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SOFT IRON ROD
For uses involving changing magnetic flux in electromagnets, electric motors, generators and transformers. Dimension (d x l), 200 X 6mm. See Enlarge
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STEEL BALLS
As a substitute for iron filings for studying the phenomenon of magnetic fields. Form clusters and chains between unlike poles of magnets. Polished, hardened spheres of diameter 3mm. Pack of 100. See Enlarge
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MAGNETS, RECTANGULAR BAR, STEEL
Useful for student demonstrations, plotting magnetic fields etc. Made from magnetic steel strips. Painted red and stamped with N and S to indicate north and south poles. Supplied in pairs with cardboard separator and plated soft iron keepers. Dimensions: See Enlarge
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MAGNETS, HORSESHOE, STEEL
Suitable for many experimental and demonstration needs in general science and physics laboratory. Traditional style. Made from 5mm thick and approx.12mm wide steel strips except for the largest size which is about 15mm wide. Painted red and stamped with N and S to indicate north and south poles. Supplied with soft iron plated keeper (armature). See Enlarge
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MAGNETS, BAR, PAIR, ALNICO
Strong magnets for laboratory demonstration work, magnetising needles, etc. Ideal for extended classroom use. Painted red and north pole marked. Supplied in pairs between plated keepers and a plastic separator. See Enlarge
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MAGNETS, CYLINDRICAL, ALNICO
For having high magnetic field. Grounded on all sides See Enlarge
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MAGNETS, HORSE SHOE, ALNICO
Suitable for laboratory use. Approximate outside height about 28mm and outside width about 26mm painted red with keeper. See Enlarge
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MAGNET, RING, CERAMIC
For collision studies in physics and other applications such as focussing magnet etc. Charged on the faces. See Enlarge
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MAGNET, CIRCULAR (DISC), CERAMIC
Used in conjunction with plastic beads and ring magnets for motion and collision studies in physics and for other applications. Can be magnetised along any side. See Enlarge
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