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Accessories Set For Demountable Transformer
Description
Comprising 1 welding coil of 5 turns on former with insulated handle and short-circuiting pins,1 annular melting trough with insulated handle to show heating by induction,1 jumping ring which is thrown clear when primary current is started and a floating ring which remains freely suspended when primary current is flowing.
Air Core Solenoid
Description
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 5 A continuously or 10 A intermittently.
Basic Electricity Kit
Description
This economical kit consists of various components, which help students explore many electrical and electronic concepts. Supplied with instruction manual. Kit consists of: Cell Holder (12), Bulb Holder, MES, Mounted on Base (20), Push Key (8), Two Way Switch (4), Universal Clip (4), Electrode Holder (4), Variable Resistance (4), Bulbs, MES (40), Connecting Lead, 4mm, 10cm, Red (12), Connecting Lead, 4mm, 10cm, Black (12), Connecting Lead, 4mm, 25cm, Red (4), Connecting Lead, 4mm, 25cm, Black (4), Crocodile Clips (8), Carbon Rod (12), Soft Iron Rod (8), Silicon Diode (4), Resistance, Fixed (4), Copper Foil Sheet, 150×150mm (1), Copper Wire, Bare, 20SWG (1 Reel), Copper Wire, Insulated, 50m (1 Reel), Eureka Wire, 34SWG (50gm), Steel Wool (1 Pack).
Bicycle Dynamo Assembly
Circuit Breaker Demonstration
Description
Investigate the working principle of circuit breaker type fuse with this demonstration model. The apparatus is built on a robust plastic base and includes resistive loads to simulate external wiring circuits. Applications of the thermal response of bimetal strips and also electromagnetism (movement from a solenoid) are clearly demonstrated in this model. When a 12 V DC supply is connected (not supplied) the LED lights to show that current is flowing in the external circuit and the bi-metal strip can be seen to bend as its heater coil raises the temperature. After a few minutes the bending is sufficient to trip the mechanism and the current path is broken. At any current selection a short circuit situation can be initiated by pressing the red button and this produces an immediate response from the solenoid to disconnect the supply.
Coil, High Inductance
Conductors and Insulators
DC Motor Kit
Description
A simple kit for students to gain insight into field poles, armatures and switches, one mounting base, two coils of insulated wire , field pole, mounting bracket, two armature halves, one piece of insulating tubing, motor shaft, two commutator insulators, two bronze wire brushes, two shaft supports, four paper fasteners, a AA battery holder and 6 each of screws and nuts. Requires one AA battery, not supplied, with assembly instructions.
Decade Inductance Box – 3 Dial
Decade Inductance Box – 7 Dial
Description
Housed in a box with seven dials and fitted with 4 mm output plugs, the unit allows a range of inductances from 1ΩH to 10ΩH. 7 Decade Inductance Box (i) 1ΩH to 10ΩH in steps of 1ΩH (ii) 10ΩH to 100ΩH in steps of 10ΩH (iii) 100ΩH to 1mH in steps of 100ΩH (iv) 1mH to 10mH in steps of 1mH (v) 10mH to 100mH in steps of 10mH (vi) 100mH to 1mH in steps of 100mH (vii) 1mH to 10mH in steps of 1mH