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Physics Equipment
ELECTRIC BELL
Similar to ELECTRIC BELL, LOW VOLTAGE but works on 230V AC, 50/60Hz
ELECTRIC BELL, LOW VOLTAGE
It has twin coil, operates on both battery or low voltage transformer supply. With detachable. snap-on type plastic cover to show inner construction. Dome gong diameter 75mm approx.
ELECTRIC FIELD APPARATUS
For investigation of electric field patterns due to various electrode configurations and also permits easy demonstration of the related concepts to a group of students through overhead projector. The apparatus comprises a clear plastic dish and a transparent rectangular base carrying a pair of 4mm socket terminals that can also hold adjustable electrodes. Includes a set of 6 electrodes - two point source electrodes, two line source electrodes and two circular rings of 35 and 70mm diameter respectively.
ELECTRICAL WHIRL
For demonstrating the effect of electric discharge from pointed conductor also called corona discharge. Comprises a series of L-shaped metal spokes with arms bent in same direction, arranged radially in circular fashion and free to rotate on an insulated stand. When brought near a charged object, the pointed end of spokes ionizes the air due to high charge density resulting in its rotation
Electricity System 1
Specifications : Size: 50 x 42 x 12 cm – Weight: approx. 4.5 kg Packing: durable carry case in ABS with internal foam. COMPONENTS : • Board (for Electricity and Electronics) • Voltmeter, 0?15 V and 0?1.5 V (4 plug) • Ammeter, 0?500 mA and 0?50 mA (4 plug) • Resistor 100 Ω 2 W (2 plug) (4x) • Resistor 220 Ω 2 W (2 plug) (2x) • Resistor 470 Ω 2 W (2 plug) (2x) • Resistor 1 kΩ 2 W (2 plug) (2x) • Resistor 4.7 kΩ 0.25 W (2 plug) (2x) • Resistor 10 kΩ 0.25 W (2 plug) (2x) • Potentiometer 100 Ω 5 W (4 plug) • Lamp holder for E10 bulbs (2 plug) (4x) • Capacitor 1000 μF (2 plug) (2x) • Two cell holder (4 plug) (2x) • Coil 10 mH (2 plug) • Compass • Bridging plugs (2 plug) (4x) • Push-button switch (2 plug) • Toggle switch, single pole (2 plug) • Lamp bulb E10, 2.8 V (4x) • Lamp bulb E10, 6 V (4x) • Lamp bulb E10, 12 V (4x) • Cylindrical magnet • Ferromagnetic core • Stackable plug lead, length 25 cm, red (2x) • Stackable plug lead, length 25 cm, black (2x) • Stackable plug lead, length 50 cm, red • Stackable plug lead, length 50 cm, black. LAWS & PRINCIPLES INVESTIGATED : • Voltage and current measurement • Ohm’s Law
• Kirchhoff’s Laws • Resistance, capacitance and inductance in circuits • Investigating the Potentiometer • Charge and discharge of a capacitors in circuits • RC, RL and RLC circuits • Magnetic energy and mechanical forces in circuits • Mutual-induction in circuits • Series parallel circuit • Electromagnetism in circuits.
Electricity System 2
Specifications : Size: 50 x 42 x 12 cm – Weight: approx. 4 kg Packing: external suitcase in a durable ABS plastic carry case. COMPONENTS : • Relay, 6?12 V (4 plug) • Motor Unit, 3?12 V (4 plug) (2x) • Plastic Propeller • Motor Model (4 plug) • Double C core • Spring Steel Clip • Coil, 400 turns (2x) • Coil, 1600 turns
• Toggle switch, single pole (2 plug) • Push-button switch (2 plug) • Reversing switch (4 plug) (2x) • Bridging plugs (2 plug) (2x) • Buzzer, 3?12 V (2 plug). LAWS & PRINCIPLES INVESTIGATED : • What is a transformer • Investigating the behaviour of electric motors • Looking at electric energy transformation into mechanical energy • The principle of the dynamo • Looking at mechanical energy transformation into electrical energy • Experiments with luminosity.
ELECTRODE PLATES FOR SIMPLE CELLS
For use in simple voltaic cells as electrodes. Each rectangular plate is 125 x 50mm in size and is fitted with a terminal for electrical connection.
ELECTROMAGNET
Demonstrates how electric current can be used to generate very strong magnetic fields. This two-part, dissectible
electromagnet comprises a core and a yoke, with their mating surfaces precisely machined to very close tolerances. The core has a cylindrical coil wound with enameled copper wire on annular insulated bobbin, with both ends of winding terminating in crocodile clips. Back of the core has a cell holder that can be connected to coil using crocodile clips. Both core and yoke provided with steel eye-bolts. Generates tremendous lifting power.
ELECTROMAGNET, U-SHAPED
Comprising iron U-shaped core of circular section with armature and carrying hook. Armatures on both the arms wound with enameled copper wire and are joined in series. Provided with a terminals for connections. For use on 4-6 volts DC
ELECTROMAGNET, U-SHAPED Deluxe Model- with thicker soft iron U-core
Comprising iron U-shaped core of circular section with armature and carrying hook. Armatures on both the arms wound with enameled copper wire and are joined in series. Provided with a terminals for connections. For use on 4-6 volts DC
ELECTROMAGNET, U-SHAPED Economical Model- with mild steel U-core
Comprising iron U-shaped core of circular section with armature and carrying hook. Armatures on both the arms wound with enameled copper wire and are joined in series. Provided with a terminals for connections. For use on 4-6 volts DC
ELECTROMAGNET, U-SHAPED Very powerful, advanced model, with bigger coil and thick soft iron core
Comprising iron U-shaped core of circular section with armature and carrying hook. Armatures on both the arms wound with enameled copper wire and are joined in series. Provided with a terminals for connections. For use on 4-6 volts DC
ELECTRONIC BREADBOARD
Perfect for introductory circuit courses easy and rapid circuit testing. The solder-less breadboard consisting of a matrix of low contact resistance spring clips embedded in a robust plastic moulding. The board layout combines bus-strips directly with the breadboard and contains a total of 128 terminal clips offering 640 tie points. Each clip will firmly contact directly inserted wires and the board accepts up to eight 1 6-pin ICs. Mounted on a sturdy sheet metal casing.
Electronics System 1
Specifications Size: 50 x 42 x 12 cm – Weight: approx. 3.5 kg Packing: external suitcase in hard ABS, internal foam for prevent accidental shock. COMPONENTS : • Board (for electricity and electronics) • Si diode (2 plug) (2x) • Signal transistor PNP (4 plug) • Signal transistor NPN (4 plug)
• Power transistor PNP (4 plug) • Power transistor NPN (4 plug) • LED, red colour (2 plug) • LED, green colour (2 plug) • Infrared LED diode (2 plug) • Unijunction transistor UJT (4 plug) • Silicon controlled rectifier SCR (4 plug) • Triac (4 plug) • Photo transistor (2 plug) • Photoresistance LDR (2 plug) • Zener diode 6.2 V (2 plug) • PTC resistor (2 plug) • NTC resistor (2 plug) • Potentiometer 1kΩ 0.25 W (4 plug). LAWS & PRINCIPLES INVESTIGATED : • Characteristics of diode • Investigating transistors • Comparing PNP and NPN transistors • Characteristics LED diodes and Infrared LEDs • Looking at photoresistors versus phototransistors • Experiments on power dissipation
• Investigating Signal versus Power transistors • Transistors in power applications: thyristors (SCR, UJT and TRIAC) • Theory of rectification in circuits • Theory of reflection in circuits • Temperature and the use of thermistors in circuits • Looking at Zener diodes in circuits • The astable multivibrator (or flip-flop circuit).
Electronics System 2
Specifications : Size: 50 x 42 x 12 cm – Weight: approx. 3 kg Packing: comes with a durable ABS plastic carry case with foam inserts. COMPONENTS : • Microphone with cable • Loudspeaker (4 plug) • Bridge rectifier (4 plug) • Signal transistor NPN (4 plug) (2x) • Power transistor NPN (4 plug) • Capacitor 500 μF not polarized (2 plug) (2x) • Capacitor 50 μF not polarized (2 plug) (2x) • Capacitor 10 μF not polarized (2 plug) (2x) • Capacitor 1 μF not polarized (2 plug) (2x) • Resistor 47 Ω 2 W (2 plug) (2x) • Resistor 2.2 kΩ 2 W (2 plug) (2x) • Resistor 3.3 kΩ 2 W (2 plug) (2x) • Resistor 10 kΩ 0.25 W (2 plug) (2x) • Resistor 47 kΩ 0.25 W (2 plug) (2x) • Resistor 100 kΩ 0.25 W (2 plug) (2x) • Resistor 1 MΩ 0.25 W (2 plug) (2x) • Bridging plugs (2 plug) (2x) • Plugs, 90? (2x) • Potentiometer, 100 kΩ 0.25W (4 plug) • Stackable plug lead, length 25 cm, red (2x) • Stackable plug lead, length 25 cm, black (2x) • Stackable plug lead, length 50 cm, red (2x) • Stackable plug lead, length 50 cm, black. LAWS & PRINCIPLES INVESTIGATED : • Investigating the diode’s physical behaviour in a circuit • Looking at the transistor’s physical behaviour • Polarization within a circuit • Stability of a transistor • Experiments looking at the amplification in a circuit.
ELECTROPHORUS
For producing static charge in small quantities. Comprises an insulating bakelite disc in wooden sale, along with a brass disc mounted on insulating handle. The brass disc also has a small conducting sphere attached to it for earthing the disc while use.
ELECTROSCOPE, GOLD LEAF, ALUMINIUM EXTRUSION
Comprises a pair of specially designed aluminium extrusion walls mounted parallel to each other and supported on top and bottom by moulded plastic plates. Provided with removable front and back sliding glass panels, one clear and other ground, respectively. The disc electrode is mounted through the upper lid connected to a metal blade at its underside, which in turn has a fine sheet metal leaf pivoted at its center to provide deflection with the charging of the electrode. Case fitted with terminal at the side for earthing. The upper lid also has a circular arc scale attached at its underside for noting the deflection of leaf.
ELECTROSCOPE, GOLD LEAF, FLASK TYPE
Comprises a glass conical flask, sealed at the top with holed rubber stopper. A metal rod supports a disc terminal at the top of rubber stopper and a pair of foil leaves suspended inside.
ELECTROSCOPE, IN CIRCULAR METAL CASE
Annular metal ring frame of diameter about 125mm, carries an insulating bush at the top, which has circular metal disc electrode above it and a conducting metal strip on the underside. The smaller, lightweight metal strip is pivoted at the center of bigger strip to provide deflection with the charging of electrode. The metal frame also has an earthing terminal at one side. Complete assembly mounted on base.
ELECTROSCOPE, METAL CASE, BIG
A bigger sized electroscope, similar to GOLD LEAF ELECTROSCOPE in appearance and construction. It has an insulating bush carrying a metal blade underneath it and inside the chamber to which a single metal leaf maybe pivoted which deflects, when charged. The case provided with a terminal for earthing. The front window is clear and the rear window is of ground glass. An internal transparent scale graduated 0 to 900 is provided for measuring the deflection of the leaf. Includes two interchangeable electrodes that can be fitted on top of insulating bush - a disc electrode of diameter 50mm, mounted on a peg and a metal ball of 25mm diameter to study the charge capacities of both the electrodes. Overall dimensions 112 x 63 x 143mm (width x thickness x height).
ELECTROSCOPE, PITH BALL
A simple device for detecting the presence of electrostatic charges. A plated brass pillar mounted on base supporting two pith balls in un-spun silk.
ELECTROSCOPE, PITH BALL on Bakelite Base
A simple device for detecting the presence of electrostatic charges. A plated brass pillar mounted on base supporting two pith balls in un-spun silk.
ELECTROSCOPE, PITH BALL on Metal Stand
A simple device for detecting the presence of electrostatic charges. A plated brass pillar mounted on base supporting two pith balls in un-spun silk.
ELECTROSCOPE, PITH BALL on Plastic Base
A simple device for detecting the presence of electrostatic charges. A plated brass pillar mounted on base supporting two pith balls in un-spun silk.
ELECTROSTATIC KIT
A comprehensive kit, ideal for a group of students to investigate the concepts of electrostatics. Designed around dual-purpose electroscope, which enables comparative measurements of the weak electrostatic fields apart from the qualitative aspect of electrostatic charges. The complete kit comprises Electroscope with disc electrode and hook electrode - 1 set Metalized Polystyrene Spheres - 4 Nos., Nylon Thread - 1 Reel, Electrophorus - 1 No., Proof Plane - 1 No., Wire Stirrup, for suspending strips - 1 No., Aluminium Cans, 50x25mm [height x diameter) - 2 Nos. Polythene Tiles 75mm square - 2 Nos., Polythene Strip, 150x25mm-1 No., Woolen Cloth, 250mm square - 1 No., Silk Cloth, 250mm square - 1 No., Glass Rod, 10" -1 No.
Electrostatics System
Specifications Size: 73 x 50 x 16 cm – Weight: approx. 5.5 kg Packing: ABS plastic carry case with foam inserts. COMPONENTS : • Leaf Electroscope • Hollow sphere • Conductive sphere • Pith Ball Electroscope • Neon Tube • Reel of nylon filament, 25 m • Polyethylene strip • Wire stirrup to support items • Wool cloth • Silk cloth • Glass rod • Ebonite rod • Perspex rod • Electrophorus disk with handle • Proof plane with handle • Polyethylene tile • Faraday’s Well • Aluminium can (2x). LAWS & PRINCIPLES INVESTIGATED : • Charging by conduction • Charging by friction • Charging by induction • Conducting sphere • Investigating electric charge • Principles of the electroscope • Faraday ice pail experiment • Volta’s electrophorus experiment.
ELEMENTARY PLANETARIUM
A durable, economical, simplified, hand-operated model that demonstrates the orbital relationship of movement of Sun, Earth and Moon throughout the year and shows solar, lunar and annular eclipses, moon phases, and seasons etc. The sun sphere is lighted with the beam always pointed towards the Earth to show moon shadow and display twilight zones on the earth sphere. A chain drive keeps the North-pole pointed towards the Polaris.
EM Trigger & Launcher for Cart
An automatic trigger/launcher for dynamics experiments.
ENERGY TRANSFER KIT, MALVERN
The Malvern energy transfer kit comprises several separate units, which enable wide range of demonstration experiments in energy transfer / conversion, permitting the user to show qualitatively energy conversion from one form of energy to another in a various different ways. All units with pulleys are mounted on the bases of same size to assist alignment of pulleys and provided with 4mm socket terminals wherever needed for electrical connection. All units, where motion is required to be transferred through external means, are provided with a pulley to the central shaft carrying the accessory, except Turbine/Pump Unit.
ENERGY TRANSFER KIT, MALVERN Fly-Wheel Unit.
Demonstrates the conversion of electrical energy to kinetic energy and vice-versa. For use with a large motor/generator and a lamp unit Comprising a cast iron flywheel of about 115mm diameter, mounted in brackets with bearings. The shaft has a pulley for being driven by large motor/generator through the belt.
ENERGY TRANSFER KIT, MALVERN Hand Wheel Driving Unit
Converts human muscular energy to other forms of energy. For use in driving dynamos. line shafts, flywheels, pumps etc. the driving and output pulleys are both of 75mm diameter, and the intermediate pulley is 20mm diameter giving a step-up ratio of 3.75.
ENERGY TRANSFER KIT, MALVERN Head of Water Unit
For use with turbine pump unit to provide an open or closed system in demonstrating the conversion from electrical to kinetic energy in the pump and potential energy in the head of water. Supplied complete with two glass basins and shaped glass tubes. The upper platform has a hole to its allow use as a simple re-circulation system with a single reservoir.
ENERGY TRANSFER KIT, MALVERN Lamp Unit Triple, Deluxe
Similar to Lamp Unit, Triple but better quality. All the three lamp holders enclosed in insulated cover with only their mouths visible for fixing lamps. Complete assembly mounted on sturdier base with non-skid feet.
ENERGY TRANSFER KIT, MALVERN Lamp Unit, Triple
Comprises three MES lamp sockets connected in parallel with a pair of 4mm socket terminals. For use with motor/generators to give an indication of their output when used as dynamos. The lamp-holders are connected in parallel. Supplied with three lamps 3.5V, 0.25A
ENERGY TRANSFER KIT, MALVERN Large Motor/Generator
For use as a driving unit or dynamo. Comprises a low voltage, permanent magnet, DC motor, provided with a pulley. Supplied with driving belt.
ENERGY TRANSFER KIT, MALVERN Line Shaft Unit
For showing the conversion from electrical energy, via mechanical, to potential energy by winding up a mass on a cord. One end of the shaft carries pulley, and the other shaft end overhangs the base and is fitted with a cord anchoring collar to enable mass to be wound up. Supplied complete with driving belt.
ENERGY TRANSFER KIT, MALVERN Mounted Lamp,12V 24W
For use with the mounted solar cell and motor. A 12V 24W SSC bulb in a metal socket mounted on a folded metal base 100 x 63mm with a pair of 4mm sockets. The power rating of the bulb has been chosen so that when it is placed in front of the solar cell, sufficient power is produced to run the motor effectively whilst avoiding the risk of damage to cell by excess light and/or heat.
ENERGY TRANSFER KIT, MALVERN Mounted Motor for Solar Cell
This is a small, low consumption electric motor on a base specially designed to run directly from the output of the solar cell and to illustrate the direct conversion of light energy to electrical and thence to mechanical.
ENERGY TRANSFER KIT, MALVERN Mounted Solar Cell
For use with the motor to demonstrate the production of electrical energy directly from light energy, which is then transformed to kinetic energy of the motor fan. The apparatus comprises a photovoltaic cell housed in a plastic case.
ENERGY TRANSFER KIT, MALVERN Small Motor/Generator.
For use with the larger motor/generator in comparing power input and output by driving each in turn with the other and metering the voltages and currents. Can also drive large Motor/Generator as dynamo to generate electricity.
ENERGY TRANSFER KIT, MALVERN Spring Unit
For showing potential energy stored in a wound-up steel spring and its conversion to electrical energy by driving a dynamo and lighting a lamp. May also be used to wind up a mass on a cord showing the change from potential energy to kinetic and back to potential in the raised mass. The steel shaft carries a wound steel spring strip with a free wheel device and winding ratchet also a pulley. One end of the shaft overhangs the base for use as a line shaft when winding up a mass. Supplied complete with driving belt.
ENERGY TRANSFER KIT, MALVERN Turbine/Pump Unit
For use as a water turbine to drive a generator producing electricity or for use as a pump driven by a motor and raising a head of water to produce potential energy. The rotor encased in a cast metal housing with a clear Perspex front, has eight bucket blades. Two inlet tubules (for turbine and pump operation respectively] and one outlet tubule are provided, all inlet/outlet tubes riffled, and the impeller shaft carries a pulley towards outside. With driving belt.
EQUALITY OF PRESSURE IN LIQUIDS (PASCAL'S LAW SYRINGE), ALL METAL
All metal construction provides rigidity, sturdiness and durability to the apparatus. Comprises a removable spherical metal bulb mounted at one end of the cylindrical barrel with piston plunger at the other end. The spherical bulb has a number of holes on its surface with small brass nozzles projecting out. All metal parts either well painted or plated. When filled with water, pushing in the plunger makes water to eject from all the nozzles with equal force.
EQUALITY OF PRESSURE IN LIQUIDS (PASCAL'S LAW SYRINGE), GLASS
The apparatus comprising a glass cylinder provided with a piston plunger on one end and terminating in a spherical glass bulb on the other end. The bulb has small holes around its surface. Pushing the plunger inside with the apparatus filled with water, water is ejected with equal force from all the holes.
EUREKA/CONSTANTAN WIRE, BARE
A copper nickel alloy of low temperature co-efficient suitable for resistance coils etc. Double Rayon covered is also available in this category.
EVENT TIMER
A compact and versatile timer featuring 5 digit, 7 segment LED display, operating on 220V AC, 50 / 60Hz, for use with apparatus such as "g by free fall" or wherever manual timing is needed. The complete unit housed in a two part aluminium alloy extrusion with insulated plastic side supports, having overall dimension of about 250x165x115mm (LxWxH). Casing specially designed for stability on the bench while providing easy viewing. Main features include maximum time measurement up to 9999.9 seconds and user settable as well as auto resolution modes [with maximum resolution of 0.0001 s, manual operation through push button controls provided (START, STOP, RESET / HOLD & RECALL - each in different color for quick and easy identification), "Auto Mode" remote operation through wired controls having separate START / STOP control in MOMENTARY mode and single control in MAINTAIN mode, and storing the 1st and last reading in the memory. With fused input and indicator ON / OFF.
EXPANSION APPARATUS
Demonstrates the linear expansion of solids. Comprising two cast?metal uprights linked by a pair of parallel plated metal support rods and supporting an expansion bar at the top. The expansion bar is fixed to one upright and rests beneath a friction pointer on the other upright. The pointer moves along a scale reading 0 to 90?. Expansion of the bar on heating causes the pointer to move along the scale. Supplied complete with expansion bars, one each of aluminium, brass and iron.
EXPANSION OF LIQUIDS APPARATUS
Demonstrates the different thermal expansion of various liquids thus simultaneous comparison of the volumetric expansion of up to five different liquids. The apparatus consists of five glass bulbs with integrated long tube shaped neck ending in small funnel at the top to facilitate pouring in of liquids, the neck of the bulbs having scale graduated in millimeters. The neck of bulbs supported in a metal frame mounted on a sheet metal trough with the bulbs located inside the trough. Heating the trough with water contained in it provides uniform heating to all the five bulbs through the heated water, and the level of liquids in each bulb can be read along the scale on the neck to indicate its expansion.
Expansion of Liquids Apparatus
Specifications : Overall dimensions: approx. 38 x 9.5 x 36 cm. Discover the relative coefficient of expansion of different liquids easily. Illustrates the different expansion of liquids and allows for the determination of the relative
coefficient of expansion. Constituted of five glass bulbs with stem, total height 400 mm; mounted against a plastic stand, with 5 scales graduated in mm. Complete with metal trough for the uniform and simultaneous heating of the 5 glass bulbs. COMPONENTS : • Stand with 5 Scales • Metal Trough • Glass Bulb with Stem (5x) • Syringe. LAWS & PRINCIPLES INVESTIGATED : • Expansion of liquids (relative expansion) • Coefficient of expansion.
EXPANSION OF LIQUIDS APPARATUS WITH BACK PANEL
Similar to EXPANSION OF LIQUIDS APPARATUS but with bulbs supported on a vertical positioned back-panel in place of the frame'through the clips. This back panel provides the easy reading of liquid level along the scale, while simultaneously facilitating easy removal and mounting of bulbs in the water trough for their convenient filling, care and cleaning. The water trough has channel shaped slots on the inner side for vertically sliding the back panel into position.
