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Electricity
Primary and Secondary Coil
The apparatus demonstrates the principle of Electromagnetic Induction and helps explain the concept of a transformer. Primary and Secondary coil consist of coils mounted on plastic spools, with 2 binding posts on each coil. You can slide the primary coil inside the secondary coil. Also includes a soft iron core for induction experiments. Primary coil has 480 turns while secondary coil has 3800 turns. Requires a galvanometer and bar magnets, not supplied with apparatus.
PH50250 -
Electricity
Primary and Secondary Coils
To demonstrate electromagnetic induction and transformer principles. Primary coil with 175 turns, secondary coil with three different windings 500; 1000 and 1500 turns. Coils are wound on moulded pipe and are provided with 4 mm safety sockets. With Plated Iron Core.
PH50252 -
Electricity
Air Core Solenoid
Air Core Solenoid helps investigate the magnetic field of a long coil. It can also used with the Current Balance as an accessory to measure the force on a conductor in a magnetic field. The solenoid has coils wound on a plastic tube with approximately 575 turns of copper wire. It can carry a current of 5A continuously, or 10A intermittently.
PH50255 -
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Electricity
Wheatstone Bridge, Two Gap
Comprising a resistance wire (SWG 26) stretched along a meter scale subdivided in mm and marked every cm. is clamped to stout brass plates so as to avoid end errors. A plated brass strip with 4 mm socket terminal is fitted along the meter rule to provide a two-gap system for normal Wheatstone bridge work. Complete with jockey.
PH50401 -
Electricity
Wheatstone Bridge, Four Gap
Four gap systems, enabling two additional resistances to be interpolated in the additional gaps, enable greater accuracy of measurement by reducing unwanted resistance to a minimum. Two brass strips are provided to close the gaps when so required. Complete with jockey.
PH50404 -
Electricity
Slide Wire Wheatstone Bridge
Consists of a resistance wire with a sliding contact and a strip of aluminum to provide two “arms” of the bridge for known and unknown resistance. Strips of heavy aluminum are provided with a single gap in each of two arms for the resistance. All components are mounted on a heavy sheet metal base. With Instructions.
PH50410 -
Electricity
Resistance Demonstration Set
Resistance Demonstration Set demonstrates the relation between resistance and cross-section of different wires. This set has 2 copper and 2 nichrome wires of different diameters. A pair of color-coded terminal used for power supply connection. This set uses 6V DC to operate.
PH50420 -
Electricity
Resistance Substitution Box
Set of 12 preferred value carbon resistors with rotary selection switch, in a box. Values are 33 Ω (10 W), 100 Ω (10 W), 330 Ω (5 W) 1 kΩ (1 W), 3.3 kΩ (1 W), 10 kΩ (0.25 W), 33 kΩ (0.25 W), 100 kΩ (0.25 W), 330 kΩ (0.25 W), 1 MΩ (0.25 W), 3.3 MΩ (0.25 W) and 10 MΩ (0.25 W).
PH50430
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