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Physics Equipment
DEFLECTION MAGNETOMETER
For studying earth's magnetic field. Comprises a compass box as Magnetic Compass but mounted at the center of a long base board with a 0-50cm scale on either side of compass box.
DEFLECTION MAGNETOMETER on aluminium channel base
For studying earth's magnetic field. Comprises a compass box as Magnetic Compass but mounted at the center of a long base board with a 0-50cm scale on either side of compass box.
DEFLECTION MAGNETOMETER on wooden base
For studying earth's magnetic field. Comprises a compass box as Magnetic Compass but mounted at the center of a long base board with a 0-50cm scale on either side of compass box.
Demonstration Balance Model
Specifications : Height: 50 cm – Arm length: 45 cm – With bench clamp for table mount. Designed to demonstrate levers, static forces and the analytic balance. LAWS & PRINCIPLES INVESTIGATED : • Calibration of a balance • Using the Analytical Balance • Mass determination by comparison • Moment of a force • Levers.
Demonstration Compass
Specifications : Size: 16 x 3 cm (dia. x height) – Magnetic needle: 10 cm length. Our Demonstration Compass consists of a simple magnetic needle on a compass map. Our compass makes it extremely easy to demonstrate the cardinal points of a compass and determine all their directions. LAWS & PRINCIPLES INVESTIGATED : • Investigating Earth’s magnetic field • What are the cardinal points? • The compass point and winds direction experiments
Demonstration Dynamo
Specifications : Base dimensions approx. 150 x 200 mm. Completely exposed demonstration model. An armature comprising two coils of copper wire is mounted to rotate about a horizontal axis. The spin of the armature is obtained for means of one hand cranked driving wheel, diameter 140 mm, coupled via a belt. Transmission ratio 1:4. The magnetic field is generated by means of one permanent U-magnet supplied with the unit. Mounted on plastic base, dimensions 150x200 mm, with two 4 mm sockets for connection to measuring instruments and a LED. Complete with 5 spare. LAWS & PRINCIPLES INVESTIGATED : • Motor spinning • Dynamo • Current generation
• Interaction between currents and magnetic fields.
DEMONSTRATION DYNAMO, AC/DC
Shows the conversion of mechanical energy into electrical energy and principle of working of simple AC and DC dynamos. Complete assembly mounted on a base and capable of generating both AC and DC simultaneously as indicated by the glowing of bulb present on the base. A two-pole armature wound from enameled copper wire on insulated bobbin is mounted in shaft supported on moulded plastic legs on either side and is positioned between two curved iron strips. The shaft carries split ring commutator on one side for DC output and slip ring commutator on the other side for AC output, which is available through 4mm sockets mounted on respective sides and selectable through a sliding switch. Magnetic field provided by a permanent magnet on top of curved strips. The complete arrangement driven by a hand-cranked bigger driving wheel with handle through an endless rubber belt.
DEMONSTRATION DYNAMO, SIMPLE
Model mounted on a base, which also a hand-driven pulley coupled to the smaller d y n a m 0 pulley through an endless rubber belt to give a step-up ratio. Electrical output is via a pair of 4mm sockets and a light emitting diode is provided as simple output indicator. The model can also be used as a motor operating on a 6-8V DC supply
DEMONSTRATION ELECTRIC MOTOR
A model of the simplest form of DC electric motor, having 2-pole armature wound with enameled copper wire on insulated plastic bobbin. and a magnetic field provided by a removable permanent magnet. The construction of the model is completely open with all components easily dentifiable and functioning clearly observable. A disc-type commutator is incorporated and external connection to the phosphorus bronze bushes is by means of a pair of 4mm colour coded sockets. The motor operates on 6-8 volts DC.
DEMONSTRATION ENGINE MODELS
This series of engine models illustrates theory of operation and other functionality aspects of the principle types of internal combustion engine. The engines shown here are half sections cut for clear observation and understanding of their functioning by viewing all moving parts clearly. All the models are made of cast alloy and are mounted on stable bases. These models are not functional in true sense but all the working parts moves in correct relationship to one another. Wherever possible, the engines are provided with printed diagram of the engine with a key depicting critical components.
DEMONSTRATION METER
Moving coil type DC galvanometer, ammeters and voltmeters for demonstration of their working to a group of students. About 100mm scale with 55mm long pointer needle and movement encased in a clear, transparent acrylic casing with black bottom imparts clear inside view. Color coded 4mm socket terminals provided for input connections. Available in both, center zero or left zero as per the desired range.
DEMONSTRATION METER, INTERSCALE, PLASTIC CASE
Similar to DEMONSTRATION METER, WOODEN in design and functionality but complete assembly fitted in tough, plastic frame with transparent front and back windows. Moving coil type with accuracy of ? 2. 5%. 8asic sensitivity of meter calibrated a 5mA, 100mV FSD. The meter is useful for demonstrating the working principle of AC or DC ammeters, voltmeters and galvanometers, using the various interchangeable plastic scales as per Cat. No. 1091880. Overall size 300 x 1 50 x 300mm.
DEMONSTRATION METER, WOODEN
Developed for the classroom demonstration of the constructional features of permanent magnet moving coil type meters. Movement with spring control and magnetic damping and is fitted in transparent wooden casing with large glass window at the front and back. All interna mechanism and electrical connections are visible. Long pointer needle w!th thick arrowhead provides clear visibility from a distance. The wooden case has 4mm socket terminals on one side for electrical connections with a slot for inserting interchangeable scales just above it and a pair of knobs on the other side - one for zero adjustment and other for locking pointer needle. Can be used both as left zero and center zero meters. These are useful for demonstration as well as for actual measurements. It is made more versatile by using any of the scales from SCALES, INTERCHANGEABLE, FOR DEMONSTRATION METERS to convert it into a galvanometer, ammeter or voltmeter of different ranges. Accuracy Class Index 2.5, Scale Length 110 ? 2mm, Overall size 80 x 100 x 190mm approx.
Demonstration Meters Wooden Small
useful meter for demonstration of the functioning of simple, permanent magnet type moving coil meters to a group of students. Movement with spring control and magnetic damping mounted inside a rectangular wooden frame with clear glass window at the front and ground glass window at the back. All internal mechanism and electrical connections are visible. Long pointer needle with thick arrowhead provides clear visibility from a distance. With 4mm socket terminals on one side for connecting input. Has zero adjustment screw at the front. Accuracy class index - 2.5.
DEMONSTRATION MOTOR, ST. LOUIS
For the study of the fundamental principals of electric motor and generators showing conversion of electrical energy into mechanical energy and vice-versa. The motor has open type construction and consists of a two-pole DC armature. The brush holder, with two heavy binding post terminals, may be rotated for experiments. The permanent bar magnets are supported by spring-brass clamps which are un-adjustable in the horizontal plane to show the effects of pole separation. Complete with two bar magnets and a two-pole DC armature.
DEMONSTRATION TRANSFORMER
For demonstrating the basic principle of operation of the transformers. Comprises a W-shaped laminated iron core mounted on base with a vertical bolt on its each side for clamping laminated I-core or armature at its top. Also included are a set of three coils - one mains primary coil 240V AC, 50HZ, 2400 turns, and two interchangeable secondary coils, 65 and 130 turns each giving outputs of about 6 and 12V respectively at a maximum current rating of 2A, with number of turns and current/voltage rating marked on each coil. Mains coil provided with a 2 core captive mains cable for input, while each secondary coil has a pair of 4mm socket terminals for output. Coils wound on insulated plastic bobbin having hollow rectangular cross-section to exactly fit middle arm of the core with negligible flux leakage
Demonstration Transformer
Specifications : Size: 20 x 15 x 20 cm – Weight: approx. 10 kg – Power output: 2 A max. COMPONENTS : • Laminated iron U-core, with locking system • Laminated iron base • Main coil, 2400 turns • Interchangeable secondary coil, 65 turns • Interchangeable secondary coil, 130 turns • Plastic base with coil support. LAWS & PRINCIPLES INVESTIGATED : • Voltage transformation • Current transformation • Resistance in an ideal transformer • Magnetic hysteresis.
DENSITY SPHERE
Comprises a hollow sphere, with a sealed mouth, carefully adjusted to float in cold water and sink in the hot water
DIESEL ENGINE, FOUR-STROKE
A model of four-stroke water-cooled diesel engine. Clearly demonstrates the functioning of all critical components such as fuel injection system. camshaft. rocker arms, tappets etc. Cam operated inlet and exhaust valves being driven by a gear train from rear of the main crank. Ignition simulated by means of a miniature bulb. Mounted on a stable base. with printed diagram and key.
DIESEL ENGINE, FOUR-STROKE Mounted on metal base with printed diagram and key
A model of four-stroke water-cooled diesel engine. Clearly demonstrates the functioning of all critical components such as fuel injection system. camshaft. rocker arms, tappets etc. Cam operated inlet and exhaust valves being driven by a gear train from rear of the main crank. Ignition simulated by means of a miniature bulb. Mounted on a stable base. with printed diagram and key.
DIESEL ENGINE, FOUR-STROKE Mounted on plastic base
A model of four-stroke water-cooled diesel engine. Clearly demonstrates the functioning of all critical components such as fuel injection system. camshaft. rocker arms, tappets etc. Cam operated inlet and exhaust valves being driven by a gear train from rear of the main crank. Ignition simulated by means of a miniature bulb. Mounted on a stable base. with printed diagram and key.
DIESEL ENGINE, TWO-STROKE
A model of two-stroke water cooled diesel engine made in cast alloy metal. Ignition simulated by meilns of a miniature bulb. Fuel supply is also sectioned. With hand crank proved for manual operation depicting cam operated inlet and exhaust valves.
DIESEL ENGINE, TWO-STROKE Mounted on metal base with printed diagram and key
A model of two-stroke water cooled diesel engine made in cast alloy metal. Ignition simulated by meilns of a miniature bulb. Fuel supply is also sectioned. With hand crank proved for manual operation depicting cam operated inlet and exhaust valves.
DIESEL ENGINE, TWO-STROKE Mounted on plastic base
A model of two-stroke water cooled diesel engine made in cast alloy metal. Ignition simulated by meilns of a miniature bulb. Fuel supply is also sectioned. With hand crank proved for manual operation depicting cam operated inlet and exhaust valves.
Different Bodies with Equal Mass
Specifications : Diameter: 16 mm – Mass: 100 g. Set of five cylinders of equal diameter and mass but different height in iron, brass, lead, copper, and zinc for experiments on calorimetry and for density measurements. LAWS & PRINCIPLES INVESTIGATED : • Density • Specific heat.
Diffraction Grating
Useful for studying the spectrum. Mounted in 50x50mm slide frame. Available in resolutions
DIFFRACTION GRATING SLIDE
Demonstrates the basic principle of the diffraction grating and for exploring the dependence of its properties on its resolution (lines per unit length). Comprises a set of 3 gratings -100, 300 and 600 lines/mm, mounted on a single slide card mount with three apertures of 16x9mm, one for each resolution, which is clearly marked below each aperture. With protective coating.
DIGITAL METERS
Comprising a 3 1/2 digit LCD digital display mounted on a rectangular plastic box of size 90x90x42mm, having 4mm colour coded sockets for input, ON/OFF switch provided on top. Operates on 9V battery (6F22) present inside.
DIGITAL METERS, BENCH TYPE
Desk stand type featuring 3 1/2 digit LCD digital display covering almost the entire range required, for general-purpose laboratory use. Sloping display provides easy reading. Housed in tough plastic case. Operates on 9V battery (6F22) mounted inside the case. Specifications : Display Size 13mm Height; Accuracy ?0.3%; Linearity : 0.2% typical; Dimensions 92x130x100mm.
DIODE VALVE ON BASE
For studying the characteristics of a diode valve and its use as a rectifier.
DIP CIRCLE
For determination of angle of dip at a location on earth's surface. An accurately magnetic needle having strong magnetic field is fitted along horizontal axis with hardened steel pivot marking in jewels cup bearings, and is free to rotate in vertical plane along a circular scale spanided in four quadrants, graduated 90?-0-90?-0-90? for reading the inclination of needle. The needle can be easily removed for reversal. Needle and scale housed in a nonmagnetic metal casing with a glass window, both of which capable of rotating about vertical axis on a cast metal base. The vertical rotation can be read directly from a circular scale fitted on base, graduated 0-360?. Fitted with leveling screw and spirit level.
DIP CIRCLE
For determination of vertical component of earth's magnetic field at a particular location. Comprises an accurately balanced needle on a non magnetic metal strip attached to the circular scale spanided in four quadrants, graduated 90?-0-90?-0-90? for reading the inclination of needle, both of which are mounted on a non-magnetic cradle and can be rotated about horizontal axis. The complete assembly is mounted on a sturdy cast metal base through a nonmagnetic pillar which is rotatable about vertical axis. The vertical rotation can be read directly from a circular scale fitted on base, graduated 0-360?. Fitted with leveling screw and spirit level.
DIP NEEDLE, SIMPLE
Comprising a quadrant-shaped scale graduated 0-90? with cobalt steel magnetic needle about 10cm long, supported on a circular base marked every 45? about which it can fully rotate. All parts except needle of nonmagnetic material.
DIRECT VISION SPECTROSCOPE
A simple device for the rapid qualitative examination of composition of emission and absorption spectra. It has the principle components collimator, prism and telescope, all arranged along the same straight tube. Comprises a plated brass pipe with adjustable slit at one end for adjusting the inside amount of light entering inside, and a drawtube at the other end having eyepiece. The drawtube can be slid along its length for sharp focusing of the spectrum and is fitted with a multi-element prism causing appreciable dispersion of light without deviation. Supplied complete in velvet lined wooden case.
DISCHARGER
For discharging the charged object in electrostatics experiments. Small plated brass spheres mounted on curved arms, joined together and mounted on insulating handle. Can also be used for transferring charges from a charged object. Bigger, overall length about 30cm With two handles, in scissors shaped pattern, overall length about 20cm.
DISPLACEMENT VESSEL, ALUMINIUM
Same as Item Physics 0021 as above but made of aluminium sheet, well painted, seamless
DISPLACEMENT VESSEL, COPPER
Seamless fabrication with flared top edge, complete nickel plated body and angled spout for convenient overflow and collection of liquids.
DISPLACEMENT VESSEL, COPPER 100x50 mm
Seamless fabrication with flared top edge, complete nickel plated body and angled spout for convenient overflow and collection of liquids.
DISPLACEMENT VESSEL, COPPER 115x90 mm
Seamless fabrication with flared top edge, complete nickel plated body and angled spout for convenient overflow and collection of liquids.
DISPLACEMENT VESSEL, GLASS
Same as Item Physics 0021 as above but made of borosilicate glass with angled spout
DISPLACEMENT VESSEL. TIN SHEET
Same as Item Physics 0021 as above but made of tin sheet, well painted, seamless
DISSECTIBLE CONE
Made of hardwood. nicely painted and dissectible in total 5 parts representing different sections - circle, ellipse. parabola and hyperbola. All parts are accurately machined for precise fitting and held together by a pin. All parts can be conveniently disassembled and assembled for easy demonstration. Size approximately 15 x 25cm (height x base diameter).
DRINKING BIRD
A classic toy that is really a heat engine. A simpIe, inexpensive device that demonstrates the cooling effect caused due to evaporation. Simply duck the bird's head into a container filled of water to begin the bobbing motion. Subsequently, the thirsty bird will continue to drink so long as there is water in the container.
DYNAMICS CARTS SET, METAL
Comprises a pair of carts made of heavy gauge aluminium, with scratch?resistant epoxy coating, each incorporating 4 low-friction, ball bearing wheels, Both the carts are equipped with rubber bumpers with provision for attaching the spring steel bumpers to permit various momentum experiments in elastic and inelastic collisions. Supplied complete with one pair each of spring steel bumper in two different thicknesses and one large thin spring steel bumper.
DYNAMICS CARTS SET, PLASTIC
A pair of carts, specially moulded plastic body of unbreakable ABS. These unique precision Dynamics Carts are new improved design of the old dynamic trolleys, conventional type, used in most schools and colleges for experiments in motion. These carts are rigid and strong enough to take the weight of an adult without bending or breaking and can easily with stand routine rough usage or fall from workbench etc. Plastic body mounted on a set of 3 low?friction wheels providing straight motion over long distances A lockable spring-loaded exploder plunger has 2 levels of spring compression and is activated by a trigger knob on top of the trolley. A cushioned surface mounted on top of each cart enables placing of additional masses for increasing the effective weight of the cart. The carts can also be stacked on top of each other to make its effective mass 2-3 times its basic mass. Velcro pasted at the back end of each cart enables the study of inelastic collisions.
DYNAMICS TROLLEY SET, WOODEN
For exploring the Newton's motion, the concept of conservation momentum, and elastic?inelastic collision of objects in one-dimension. Comprises a pair of wooden trolleys, each carried upon three wheels with ball bearings to minimize friction and a spring loaded exploder plunger with 2 levels of spring compression, which is activated by a trigger knob on top of the trolley. A tough laminated surface mounted on each trolley enables placing of additional masses for increasing the effective weight of the trolley. Velcro pasted at the back end of each trolley enable the study of inelastic collisions.
DYNAMO MODEL, WITH SOLAR CELL
A small motor which operates from 1.5 to 4.5V DC with small pulley. The unit is capable of rotating a small propeller mounted on mini motor to explain conversion of solar energy into electrical energy and then into mechanical energy. The complete solar cell and the motor unit mounted in a clear acrylic case for easy viewing by students. Provides quite effective demonstration in day light or in light of a normal 100W bulb.
Eddy Current Set
An eddy current is reproduced by using a “C” shaped magnet affixed to the track and then pass once of the kits screens through it. COMPONENTS : • Aluminium flag with slits • Aluminium flag without slits (1 mm) • Aluminium flag without slits (3 mm) • Magnetic poles “C” shaped • Metallic flag for motion sensor • Support for Magnet. Eddy current (also known as Foucault current) is a phenomenon caused by a moving magnetic field
intersecting a conductor or vice-versa. The relative motion causes a circulating flow of electrons, or currents, within the conductor. With this kit, students can easily study “electromagnetic brakes” (also called eddy current brakes), to retard motion or cause deceleration in a moving system. This type of brake converts kinetic energy to heat without contact between the moving parts. Heat is generated in the screen as a direct result of the Electrical resistance of the material and the current flow induced in it; this heat represents the kinetic energy being absorbed, and it’s analogous to heat generation in a friction brake.
Elastic and Inelastic Collision in 2D
Discover energy and momentum conservation laws during collisions. COMPONENTS : • Aluminium ramp with attached set screw and nut set
• Steel ball, 13 mm (2x) • Glass ball, 13 mm • Wood ball, 25 mm drilled. LAWS & PRINCIPLES INVESTIGATED : • Conservation of energy in elastic collisions
• Conservation momentum in elastic collisions • Conservation of momentum and loss of energy in inelastic and perfectly inelastic collisions.
ELASTIC MATERIALS KIT
The kit comprising of following components Expandable Steel Springs, Wide steel springs of about 114mm length x 75mm diameter, Soft latex foam blocks, Copper Wire Reel 32 SWG, 50g Copper Wire Reel 26 SWG, Valve latex tube Cord with ring at both ends, Soft erasers for twisting.
