Westminster Electromagnetic Kit A very effective and motivating learning aid in elementary electromagnetism. Consists of 8 anisotropic alloy magnets, 8 ceramic ferrite magnets, 4 steel magnet yokes, 6 plotting compasses, 4 hardboard formers to take compasses, 1 bottle iron filings 250 gm, 4 dispensers for iron filings ,4 double C-cores, 4 clips for C-cores,4 aluminium rings,4 aluminium split rings,4 armatures with axle tubes,4 aluminium axle rods, 8 split pins, 16 rivets, 4 formers for coils, 4 reels cellotape,4 reels copper wire, 4 sheets white pasteboard,4 plain postcards,4 reels white cotton thread, 1 length latex rubber tubing, 4 each resistors 100 ohms and 10 ohms,4 support bases,10 m.e.s.bulbs, 8 mes bulb holders,1 wood clamp, 1 wooden block, with instructions.     Demonstration Dynamo Model (DI-261/62/63/64) The motor is mounted on a base with a driving wheel.Output is through 4 mm sockets and a low voltage bulb is also provided as a simple output indicator.     Induction Coil, ruhmkorff (DI-801) Coils are wound with highly insulated copper wire impregnated with paraffin wax,input 6-8 V d.c. through two 4 mm socket terminals,with an adjustable trembler system. The spark suppression capacitor is housed in the base. A pair of pointer electrodes with insulated handles for adjustement of the spark gap are provided. Spark Length:-5MM/ 10MM/ 15MM/ 20MM/ 25MM/ 50MM75MM/ 100MM/ 150MM     Wheatstone Bridge (DI-574) Four gap system, enabling two additional resistances to be interpolated in the additional gaps, enables greater accuracy of measurement by reducing unwanted resistances to a minimum. Two brass strips are provided to close the gaps when so required. Complete with jockey.     Potentiometer (DI-551/56/58) A one metre long single resistance wire passes over a metre scale and is firmly clamped to stout brass end-plates,on wooden base.Complete with knife-edge jockey.     Resistance Box, Plug Pattern (DI-491/92/93/94) All plugs are turned to a fine standard taper and are interchangeable. These are moulded in fluted plastic tops.The brass blocks are undercut and are fitted to a thick insulating plate. Heavy 4 mm brass terminals are used.Coils are non-inductively wound and are treated to be strain-free. Coil values are engraved on the plate and an infinity plug is also included. Accuracy ±0.5% for 0.01 to 0.05 ohm coils, ±1% for the rest.     Resistance Coil (DI-526) With transparent cover, non-inductive visible winding, insulated support, with brass terminals. Square end supports. :: TOP :: Page(s)  |  1  |  2  | | Mechanics | Electricity | Magnetism | Sound | Electronics | Electrical Accessories | Vacuum Apparatus | Heat | Electrostatic | Optics | Chemistry | Fiber Models | Microscopes | Corks |

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