لا توجد منتجات في سلة المشتريات.
عرض 1936–1950 من أصل 1963 نتيجة
Wimshurst Machine, Superior
This traditional electrostatic charge generator consists of two parallel transparent discs supported on rigid uprights. Each disc has a number of radial aluminium segments and are driven in opposite directions by hand wheel and belt. The electrostatic charge on aluminium segments is collected by combs mounted on either end of the discs and stored in the two leyden jars. When the potential difference between the jars is sufficiently high. A spark will flow between the adjustable discharging spheres.
SKU: PH45118SWind Power Demonstrator
This wind power generator can be used to demonstrate the generation of electricity by a wind-powered turbine. Wind produced by the hand-cranked fan subsequently turns a second fan connected to a generator. When the fan rotates, it produces electricity and lights up a small bulb and a voltmeter. Instructions included.
SKU: PH20450Wire Racks, Epoxy Coated
Ideal for test tube storage, incubation and refrigeration. Coated with a heat cured epoxy, the sturdy steel wire racks resists abrasion and withstand corrosion. Rectangular racks features square holes, three tiers for tubes support, and a wire lined bottom. Color coded for easy identification. With stand wide range of temperature. Autoclavable.
Colors available: Blue, Green, Orange, Yellow, Purple.
SKU: CH12800Wire Testing Clamps
This device provides an effective and very simple clamping system for testing the strength of the ductile wires such as copper, sewing threads, fishing lines and human hair etc. The material is clamped between the washers with the help of a wing nut clamp and the wire is routed through the holes provided in the clamps. The strength is checked by attaching one of the clamps to the clamp provided in the laboratory and loading the lower clamp with slotted weights. A maximum of 15 kg of weight can be hanged. Supplied without weights.
SKU: PH10613WWorcester Circuit Board
Enables students to investigate nature and properties of electricity by using simple circuits which are easily constructed on a base board. The connector system uses P.C.B. strips with cut-out sections whose ends can easily be inserted in spring terminals, ensuring low contact resistance and ease of connection. The kit consists of :
1. Baseboard, plastic, with spring terminals and three battery holders. (1)
2. Batteries. (3)
3. Lamps 1.25 V MES. (10)
4. Lamp holders mounted on PCB connectors. (6)
5. Plain connector PCBs. (10)
6. Wire wound potentiometer with crocodile clip connections. (1)
7. Silicon diode. (1)
8. Resistor 3.9 ohm 2.5 W (1)
9. Pair Leads, red, with crocodile clip at each end. (1)
10. Pair Leads, black, with crocodile clip at each end (1)
11. Pair Leads, yellow, with crocodile clips at each end. (1)
12. Switches mounted on PCB. connectors (2)
13. PVC rod 15 cm long (1)
14. Soft iron nails, 5 cm long (2)
15. Bare copper wire, swg 20 (2 m)
16. Bare eureka wire, swg 34 (2 m)
17. Plastic covered copper wire (2 m)
18. Electrode support (1)
19. Pencil lead electrodes (10)
20. Sheet copper foil, 150 mm square (1)
21. Pack Steel wool (1)
22. Instruction manual in English. (1)SKU: PH50152
