Stand for Lens Holder consisting of a metal pillar with clamping screw to support rods of 6mm diameter as used on standard optical bench fittings.

• Base Dimensions: 100mm x 50mm

For the measurement of the wavelength of light by the observation of 'fringes' produced by the interference between the 2 beams of light; from a common source; passing through the 2 slits. Photographically reproduced double slit 10mm long x 1mm separation protected by glass plates and framed in a...

Set of nine Gratings and Slit slides in 50 x 50mm mounts.  

Six of the nine slides are multiple slit slides which have 0.08mm lines with 0.17mm space.

The other three slides are coarse gratings with the following features:

• Coarse Grating 1: 150 slits; 4 lines / mm...

Soft Iron Rod

Dimensions:

• Length: 10mm
• Diameter: 12mm

The Magnetising and Demagnetising Coil is a low voltage solenoid and is suitable for magnetising and demagnetising ordinary magnets; iron bars; strips; etc. It comprises of a solenoid wound with insulated copper wire which is mounted on a base complete with switch and 4mm terminals.

• So...

A powerful electromagnet comprising a 'U' shaped soft iron core 100mm x 65mm overall. Formed from a 16mm diameter bar. The windings are of 0.9mm enamelled copper wire wound on insulation bobbins; connected in series and provided with 4mm sockets.

The ends of the core are carefully ground to...

A comprehensive kit sufficient for 8 students; containing all of the essential apparatus for a variety of investigations into the important phenomena of electromagnetism.

The kit includes:

• Special magnets;
• C-cores;
• Yokes and armatures for constructing the model mo...

Mild steel yokes / cradle for use with the Westminster Electromagnetics Kit (B8H26357)

• Diameter: 50mm
• Sold as pack of 10

Spare shafts for the Westminster Electromagnetics Kit (B8H26257)

• Dimensions: 100mm x 2mm approx.
• Pack of 10

Silicon steel C-core and clip with a range of coils for use as inductors and transformers. The current ratings are based on 150A per square cm. The coils will run hot; but will not be damaged by short-term currents of up to twice the stated value.

• No. of Turns: 60 + 60
• Air-core...

Silicon steel C-core and clip with a range of coils for use as inductors and transformers. The approximate inductance values; with and without a complete C-core; are shown in the table below. Current ratings are based on 150A per square cm. The coils will run hot; but will not be damaged by short...

Silicon steel C-core and clip with a range of coils for use as inductors and transformers. The approximate inductance values; with and without a complete C-core; are shown in the table below. Current ratings are based on 150A per square cm. The coils will run hot; but will not be damaged by short...

Silicon steel C-core and clip with a range of coils for use as inductors and transformers. The approximate inductance values; with and without a complete C-core; are shown in the table below. Current ratings are based on 150A per square cm. The coils will run hot; but will not be damaged by short...

Silicon steel C-core and clip with a range of coils for use as inductors and transformers. The approximate inductance values; with and without a complete C-core; are shown in the table below. Current ratings are based on 150A per square cm. The coils will run hot; but will not be damaged by short...

This apparatus has been designed primarily for demonstration of the basic principles of the a.c. transformer. The various coils and cores will also serve as the basis of many experiments in electromagnetism; using either direct or alternating current.

Contents:

• 1 laminated 'U' co...

Induction Accessory Set designed for use with the Dissectible Transformer (B8H26564).

Set comprises of:

• A six turn copper coil which allows you to show the production of a heavy current at low voltage by the melting of a nail.
• A solder trough to demonstrate the principle ...

Lenz's law transformer accessory kit to demonstrate the production of large magnetic fields and Lenz's law damping on pendulums with and without slits.

Designed to work with the Philip Harris Dissectible Transformer (B8H26564).

Comprises of:

• A solid eddy plate
• A slo...

This comprises of a strong U-shaped magnet and a pair of brass rails with 4mm socket terminals. A brass axle with plastic discs is free to roll along the rails and completes the electrical contact between them. When the axle is placed on the rails between the poles of the magnet; and a power supp...

Polythene Friction Rod (strip) for producing electrostatic charges by friction.

Dimensions:

• Length: 250mm
• Diameter: 25mm

Alternative rod materials are available to purchase separately:

• Ebonite - B8A47958
• Perspex - B8A47969
• Polycarbon...

Ideal for small group experiments in electrostatics. The set is built around the dual-purpose electroscope which; while being suitable for general work also enables comparative measurements to be made on the activity of weak radioactive materials.

The electroscope has an internal transparen...