Physics Lab
Showing 73–96 of 383 results
- Engines & Heat Physics Labware
Crookes Radiometer Double
Comprising partly evacuated having two bulbs with two sets of vane, containing at its centre a fine pivot which supports four light weight metal arms. One side of each vane is blackened; the reverse side is bright, mounted on round base.
When exposed to sunlight, the vanes rotate in opposite directions.
SKU: n/a - Electricity & Cell Lab
Demonstration Dynamo
This model uses the same basic assembly as the electric motor, mounted on a base plate which also carries a hand drive pulley 120 mm in diameter coupled to the smaller dynamo pulley by a rubber belt. Electric output is via a pair of 4 mm socket & a light emitting diode is provided as simple output indicator. The model may also be used as motor on a 4 to 8 volts DC supply.
SKU: n/a - Electricity & Cell Lab
Demonstration Dynamo Model A.C
A simple demonstration of a Dynamo Model mounted on a wooden base. Hand driven by a gear. Simplified open frame construction which can be readily understood without detriments to its essential similarity to real machine. A 2 pole armature wound by enamelled copper wire to rotate in U shape magnet in pivot. While in rotation process through the gear wheel by hand, the bulb provided glows.
SKU: n/a - Electricity & Cell Lab
Demonstration Dynamo Model A.C and D.C
A simple dynamo model to differentiate AC from DC. Mounted on a wooden base. Two bulbs are provided for AC & DC current(s). The model is hand driven & when operated, the AC bulb shows flickering light to indicate AC current while the other bulb glows fully indicating DC current.
SKU: n/a - Electricity & Cell Lab
Demonstration Dynamo Model D.C
A simple demonstration of a Dynamo Model mounted on a wooden base. Hand driven by a gear. Simplified open frame construction which can be readily understood without detriments to its essential similarity to real machine. A 2 pole armature wound by enamelled copper wire to rotate in U shape magnet in pivot. While in rotation process through the gear wheel by hand, the bulb provided glows.
SKU: n/a - Electricity & Cell Lab
Demonstration Electric Motor
A model of the simplest form of DC motor; having 3 armatures – 2 pole, 3 pole, & 4 pole, wound with enamelled copper wire, & a permanent magnetic field provided by a removable bar magnet. The construction is completely open & all components are readily observable. A disc type commutator is incorporated & external connection to the phosphor – bronze bushes is by means of a pair of 4 mm sockets. The motor shall operate on 4.5 to 9 volts DC.
SKU: n/a - Electricity & Cell Lab
Demonstration Meter
Moving coil type. Basic sensitivity of meter is 5mA, 100mV f.s.d. The meters can be used to demonstrate the working principle of AC or DC ammeters or voltmeters with interchangeable dials. Different dials are available. Housed in a Plastic/Wooden case, with plastic in front and rear.
a) Wooden case b) Plastic case.SKU: n/a - Magnetism Physics Labware
Demountable Transformer
Demountable Transformer for Physics Lab Comprises U & I cores of low loss magnetic material, to form a closed core of cross section 25 mm in plane of laminations, 32 mm perpendicular to them is an I – core of length 102 mm. U core external height 102mm. Internal height to take bobbin length 77 mm. Pair of pole pieces, each 65x30x25 mm with on end shaped to part of a cone for maximum flux density. Hole drilled through total length along cone axis to take a light beam. Pole pieces will accept supertrods & shading ring (provided with accessories) & may be clamped on any separation on U core, or in contact as a non laminated I – core. Cast aluminium alloy stand consisting of a heavy base on four rubber feet with removable clamping arms. Maximum dimensions of base 190x200x115 mm. Channel 35 mm wide & 3 mm deep to take transformer core, extends across full width. Integral support for arms, to rear, is below the level of the pole pieces. Arms pivot on steel spindle with adjustment of knobs to rear bringing hard rubber pads at front end of arms to bear on transformer core. Synthetic hammer finish except of clean metal in channel & 4 mm hole to take on earthing plug lead. Complete with all the accessories
SKU: n/a
