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BOXES FOR BAR MAGNET Length 75mm

BOXES FOR BAR MAGNET Length 75mm

Spare boxes for bar magnets, wooden
Boyle’s Law Apparatus

Boyle’s Law Apparatus

Size: 20 x 14 x 125 cm – Weight: approx. 4 kg. COMPONENTS : • Graduated Burette • Reservoir tube • Hookup for pipe (4x) • Knob (Policarbonate, Yellow) M5 x 10mm (2x) • Tube for Boyle apparatus • Sliding support for profile (2x) • Stand for Boyle’s law apparatus. LAWS & PRINCIPLES INVESTIGATED : • Boyle’s Law • Atmospheric pressure.
BOYLE'S LAW / CHARLE'S LAW APPARATUS (Combined)

BOYLE'S LAW / CHARLE'S LAW APPARATUS (Combined)

Also called Jolly's Apparatus. It demonstrates the relationship between pressure and temperature of a given mass of gas at fixed volume, i.e .? Charle's Law. Comprising Jolly's Air bulb connected to a glass mercury reservoir through flexible rubber tubing. The complete apparatus mounted on a polished wooden stand with heavy cast metal base having leveling screws. A meter rule graduated 0-100cm x 1 mm. reading in both directions is fixed on the stand for reading the levels directly. Mercury reservoir tube mounted on vertical support rod with the help of sliding bracket that can be positioned anywhere along the length of the rod. Can also be used as Boyle's law apparatus by using a glass tube with one closed mounted on a slider that slides vertically in slot provided alongside meter rule. Complete with pressure rubber tubing and set of 2 glass tubes. Supplied without mercury.
BOYLE'S LAW / CHARLE'S LAW APPARATUS COMBINED, ON

BOYLE'S LAW / CHARLE'S LAW APPARATUS COMBINED, ON

For demonstrating the relationship between pressure and temperature of a given mass of gas at fixed volume, i. e., Charle's Law. Comprising Jolly's Air bulb connected to a glass mercury reservoir through flexible rubber tubing. The complete apparatus mounted on aluminium extrusion section stand with stable rectangular base. The vertical aluminium section has a scale graduated 0-100cm x 1 mm, reading in both directions for reading the levels directly. Mercury reservoir tube mounted on vertical support rod with the help of sliding bracket that can be positioned anywhere along the length of the rod. Can also be used as Boyle's law apparatus by using a glass tube with one closed mounted on a slider that slides vertically in slot provided alongside meter rule. Complete with pressure rubber tubing and set of 2 glass tubes. Supplied without mercury.
BOYLE'S LAW APPARATUS ADVANCED

BOYLE'S LAW APPARATUS ADVANCED

Designed for Boyle's Law demonstration in wide pressure ranges to a group of students, results can be observed even from a distance. The apparatus comprises a thick walled, wide-bore glass tube mounted vertically in front of a scale graduated 0 to 65cm3, with closed end of the tube at the top and open bottom end secured tightly on the thick-walled metal tube with O-ring to get leak-proof joint. Other end of metal tube connected to a cylindrical oil chamber filled with colored oil and capable of withstanding high pressures. Zero of the scale corresponds to the inside of the closed [top] end of the tube with the scale reading directly indicating volume of the air enclosed in the tube. Oil chamber fitted with Bourdon gauge at the top. calibrated 0-3.4 x 10 Nm2 and has a valve on one side for connection to air compression pump. As the pressure in the oil chamber is increased, oil is forced into the glass tube compressing the air contained therein and the volume of the contained air and its actual (total) pressure is directly indicated. The glass , tube has thick walls of high strength having a very large safety overload margin. A transparent safety screen is mounted securely in frpnt of glass tube as an added safety measure. Supplied without pump and oil.
BOYLE'S LAW APPARATUS ALUMINIUM EXTRUSION

BOYLE'S LAW APPARATUS ALUMINIUM EXTRUSION

Demonstrates the relationship between pressure and volume of a given mass of gas at a fixed temperature, i. e., Boyle's Law. having bottom zero scale fixed to a specially designed aluminium extrusion having rectangular cross-section in place of wooden back-plate. Sliding brackets with both the glass tubes sliding vertically on the slot on either side of extrusion instead of metal support rods. Requires mercury for use, not included (available optionally).
BOYLE'S LAW APPARATUS Glass Tube for Boyle's Law Apparatus supplied as spare

BOYLE'S LAW APPARATUS Glass Tube for Boyle's Law Apparatus supplied as spare

Glass Tube for Boyle's Law Apparatus supplied as spare
BOYLE'S LAW APPARATUS LOW PRESSURE

BOYLE'S LAW APPARATUS LOW PRESSURE

Demonstrates the relationship between pressure and volume of a given mass of gas at a fixed temperature, i. e., Boyle's Law. Consists of two glass tubes ?one having both ends open and the other having one end closed. Both the tubes are mounted on vertical support rods with the help of sliding brackets that can be positioned anywhere along the length of the rod and are connected to each other through a flexible pressure rubber tubing. A meter rule graduated 0-100cm x 1 mm, reading in both directions present between the two support-rods on a wooden back- plate and facilitates level reading in both the tubes. Complete apparatus mounted on a stable cast-metal base with leveling screws. Requires mercury for use, not included (available optionally).
BOYLE'S LAW APPARATUS Red Coloured Oil for use with Boyle's Law Apparatus, 500ml

BOYLE'S LAW APPARATUS Red Coloured Oil for use with Boyle's Law Apparatus, 500ml

Red Coloured Oil for use with Boyle's Law Apparatus, 500ml
BOYLE'S LAW BURETTE

BOYLE'S LAW BURETTE

Graduated tube, with stopcock on one end and other end open for attaching rubber tubing. Made from borosilicate glass.
BOYLE'S LAW GLASS TUBES

BOYLE'S LAW GLASS TUBES

Spare set of 2 tubes. one having both ends open and the other having one end closed, made from borosilicate glass.
Boyle's Law Glass Tubes with one tube having stopcock in place of closed end.

Boyle's Law Glass Tubes with one tube having stopcock in place of closed end.

Boyle's Law Glass Tubes, with one tube having stopcock in place of closed end. Spare set of 2 tubes. one having both ends open and the other having one end closed, made from borosilicate glass.
BOYLE'S LAW SIMPLE FORM

BOYLE'S LAW SIMPLE FORM

A simple and economical apparatus for demonstration of Boyle's law to a fair degree of approximation. Consists of a graduated plastic syringe mounted on wooden block and a lubricated piston of the syringe mounted to another wooden platform that capable of holding various weights. When loaded with different masses, piston compresses the air inside syringe increasing the pressure and corresponding volume can be read directly from syringe graduation.
Bridge Rectifier

Bridge Rectifier

Specifications : Size: 13.5 x 9 x 5.5 cm – Weight: approx. 150 g. Bridge Rectifier consists of four diodes connected in a bridge circuit. The most common application of this circuit is the conversion of alternating current (AC) input into direct current (DC) output. The unit has a circuit diagram printed so that student may gain an appreciation of the importance of diodes and how they can rectify alternating current to direct current. LAWS & PRINCIPLES INVESTIGATED : • AC-DC Convertion • Diode principle.
BROMINE DIFFUSION KIT

BROMINE DIFFUSION KIT

For demonstrating the kinetic theory of gases by means of bromine vapours. Bromine molecules, initially moving at very high velocities with their unrestrained movement within a vacuum, immediately gets stalled when diffusing into air due to their elastic collisions with the air molecules. Designed with safety of the user in mind due to the toxicity of bromine. Comprises two sturdy, thick walled glass diffusion tubes about 430x50mm [height x diameter) with a small side tube near one end, two large bore 8mm stop-cocks with rubber bungs, six glass cap tubes, six bored rubber stoppers, twelve pieces of rubber tubing 125 x 12mm (length x inner diameter), two plastic adapters to adapt tubes to 8mm, one small brush for cleaning tap and one pack of Vaseline. Supplied without bromine.
BUCKET AND CYLINDER

BUCKET AND CYLINDER

Comprising a chrome-plated solid . brass cylinder with a suspension hook at its one end in close fitting brass bucket having a handle at its top and hook at its bottom. The volume of cylinder is exactly same as that of inner volume of the bucket.
BUCKET AND CYLINDER Big Painted Bucket

BUCKET AND CYLINDER Big Painted Bucket

Comprising a chrome-plated solid . brass cylinder with a suspension hook at its one end in close fitting brass bucket having a handle at its top and hook at its bottom. The volume of cylinder is exactly same as that of inner volume of the bucket.
BUCKET AND CYLINDER Small Chrome Plated bucket

BUCKET AND CYLINDER Small Chrome Plated bucket

Comprising a chrome-plated solid . brass cylinder with a suspension hook at its one end in close fitting brass bucket having a handle at its top and hook at its bottom. The volume of cylinder is exactly same as that of inner volume of the bucket.
BUCKET AND CYLINDER Small Painted Bucket

BUCKET AND CYLINDER Small Painted Bucket

Comprising a chrome-plated solid . brass cylinder with a suspension hook at its one end in close fitting brass bucket having a handle at its top and hook at its bottom. The volume of cylinder is exactly same as that of inner volume of the bucket.
bunsen burner dice casted with flame control

bunsen burner dice casted with flame control

Buoyancy Balance

Buoyancy Balance

Dimensions: 17 x 17 x 13 cm. Simple and effective instrument to experience buoyancy of air. This apparatus is constituted of a polystyrene foam ball suspended on a balance arm and mounted on a PVC stand. When located in a vacuum jar and evacuated, the balance inclines as the buoyancy force Diminishes. COMPONENTS : • Balance • Sphere with Hook. LAWS & PRINCIPLES INVESTIGATED : • Buoyancy of air • Air Pressure and level of vacuum.
BUTTERFLY NET, FARADAY

BUTTERFLY NET, FARADAY

To show that electrical charge resides on external surfaces of a conductor. Fabric net with cord on insulating pillar with metal base
CALORIMETER SET

CALORIMETER SET

The set comprises one smaller inner copper vessel of size 75x50mm [height x diameter) and one outer copper vessel of size 100x75mm [height x diameter]. Inner vessel has each of its three legs supported on solid rubber stopper, which thermally insulates its base from the outer vessel. A copper lid for the outer vessel has a small tubule at the center for mounting thermometer through holed stopper and slit for stirrer. With the smaller vessel placed inside the bigger one, the air gap between their respective walls provides insulation to minimize heat loss. Supplied complete with stirrer but without thermometer.
CALORIMETER STIRRER

CALORIMETER STIRRER

Used for stirring the contents calorimeter to ensure uniform mixing for proper heat exchange. Made of metal wire of 1.5mm diameter; with insulated plastic handle at upper end and circular loop at bottom. Available in different metals.
CALORIMETER STIRRER Aluminium

CALORIMETER STIRRER Aluminium

Used for stirring the contents calorimeter to ensure uniform mixing for proper heat exchange. Made of metal wire of 1.5mm diameter; with insulated plastic handle at upper end and circular loop at bottom. Available in different metals.
CALORIMETER STIRRER Copper

CALORIMETER STIRRER Copper

Used for stirring the contents calorimeter to ensure uniform mixing for proper heat exchange. Made of metal wire of 1.5mm diameter; with insulated plastic handle at upper end and circular loop at bottom. Available in different metals.
CALORIMETER, DOUBLE WALL, ALUMINIUM

CALORIMETER, DOUBLE WALL, ALUMINIUM

Double vessel calorimeter with inner smaller vessel of about 300ml capacity positioned inside bigger aluminium vessel of about 900ml capacity with air insulation between them to minimize heat loss. The vessels have a insulated plastic lid for thermal insulation at the top and two holes - bigger one for holed rubber stopper to mount thermometer and amaller one for stirrer. Supplied complete with stirrer but without thermometer.
CALORIMETER, DOUBLE WALL, COPPER

CALORIMETER, DOUBLE WALL, COPPER

Double vessel calorimeter with inner smaller vessel of size 75x50mm (height x diameter) positioned inside another copper vessel of size 100x75mm (height x diameter) and is surrounded completely with felt except on top to provide adequate thermal insulation. The vessels have a bakelite lid for thermal insulation at the top and a hole with slot for thermometer and stirrer respectively. Outer vessel fitted with detachable clip type thermometer support at its side. Supplied complete with but without thermometer.
CALORIMETER, JOULE'S, DOUBLE WALL, ALUMINIUM

CALORIMETER, JOULE'S, DOUBLE WALL, ALUMINIUM

Similar to CALORIMETER, JOULE'S, DOUBLE WALL, COPPER in construction and use, but with inner vessel of about 300ml and outer vessel of about 800ml, both of aluminium instead of copper, and upper lid of transparent acrylic cover. Supplied complete with stirrer but without thermometer.
CALORIMETER, JOULE'S, DOUBLE WALL, COPPER

CALORIMETER, JOULE'S, DOUBLE WALL, COPPER

Provides more accurate results. Comprises a smaller inner nickel plated copper calorimeter vessel 75x50mm [height x diameter), enclosed in an outer vessel 100x75mm [height x diameter) with felt lagging in between them for minimizing heat loss. A close fitting bakelite lid is provided with a resistance coil mounted at the underside so as to be positioned sufficiently inside inner vessel and a pair of 4mm terminals at the top for electrical connections. The lid has provision for thermometer and stirrer. The resistance coil has recommended working current of 0.5A with a maximum of 1 A to minimize the local boiling of liquid. Supplied complete with stirrer but without thermometer.
CALORIMETER, JOULE'S, IN WOOOEN BOX

CALORIMETER, JOULE'S, IN WOOOEN BOX

Calorimeter vessel comprising of a nickel-plated copper calorimeter, placed inside a polished wooden box surrounded with felt to minimize the heat loss. The vessel is covered at I the top with a bakelite cover which has a resistance coil mounted at the underside that terminates in binding posts on the upper side for electrical connections. The bakelite cover also has a slit for stirrer and a hole for suspending thermometer through a rod clamp arrangement on the wooden box. Supplied complete with stirrer but without thermometer.
CALORIMETER, JOULE'S, IN WOOOEN BOX 100 x 75mm

CALORIMETER, JOULE'S, IN WOOOEN BOX 100 x 75mm

Calorimeter vessel comprising of a nickel-plated copper calorimeter, placed inside a polished wooden box surrounded with felt to minimize the heat loss. The vessel is covered at I the top with a bakelite cover which has a resistance coil mounted at the underside that terminates in binding posts on the upper side for electrical connections. The bakelite cover also has a slit for stirrer and a hole for suspending thermometer through a rod clamp arrangement on the wooden box. Supplied complete with stirrer but without thermometer.
CALORIMETER, JOULE'S, IN WOOOEN BOX 75 x 50mm

CALORIMETER, JOULE'S, IN WOOOEN BOX 75 x 50mm

Calorimeter vessel comprising of a nickel-plated copper calorimeter, placed inside a polished wooden box surrounded with felt to minimize the heat loss. The vessel is covered at I the top with a bakelite cover which has a resistance coil mounted at the underside that terminates in binding posts on the upper side for electrical connections. The bakelite cover also has a slit for stirrer and a hole for suspending thermometer through a rod clamp arrangement on the wooden box. Supplied complete with stirrer but without thermometer.
CALORIMETER, SIMPLE

CALORIMETER, SIMPLE

Single piece calorimeter, spun into cylindrical shaped vessel, seamless, with rolled rims at the top
CALORIMETER, SIMPLE 100 x 75 mm

CALORIMETER, SIMPLE 100 x 75 mm

Single piece calorimeter, spun into cylindrical shaped vessel, seamless, with rolled rims at the top
CALORIMETER, SIMPLE 50 x 25mm

CALORIMETER, SIMPLE 50 x 25mm

Single piece calorimeter, spun into cylindrical shaped vessel, seamless, with rolled rims at the top
CALORIMETER, SIMPLE 75 x 50mm

CALORIMETER, SIMPLE 75 x 50mm

Single piece calorimeter, spun into cylindrical shaped vessel, seamless, with rolled rims at the top
CALORIMETER, WITH LID

CALORIMETER, WITH LID

Similar to CALORIMETER, SIMPLE but with bakelite lid at the top fitted with rubber stopper for thermometer and metal stirrer. Sizes [height x diameter) available
CALORIMETER, WITH LID 100 x 75mm

CALORIMETER, WITH LID 100 x 75mm

Similar to CALORIMETER, SIMPLE but with bakelite lid at the top fitted with rubber stopper for thermometer and metal stirrer. Sizes [height x diameter) available
CALORIMETER, WITH LID 75 x 50mm

CALORIMETER, WITH LID 75 x 50mm

Similar to CALORIMETER, SIMPLE but with bakelite lid at the top fitted with rubber stopper for thermometer and metal stirrer. Sizes [height x diameter) available
Capacitance Box

Capacitance Box

Specifications : Size: 135 x 90 x 55 mm – Weight: approx. 150 g, 11-position switch – 4 mm sockets, Max. voltage: 50 V – Accuracy 10%, Capacitance: 1 - 2.2 - 4.7 - 10 - 22 - 47 - 100 - 220 - 470 - 1000 nF. Capacitance Boxes are designed to be sturdy and are also very useful in laboratories. The strong ABS case prevents damage and is printed with large easy to read capacitance value to facilitate experimenting in a circuit without having to disconnect. LAWS & PRINCIPLES INVESTIGATED : • Capacitor laws.
CAPACITANCE BOX, DECADE, DIAL TYPE, METAL

CAPACITANCE BOX, DECADE, DIAL TYPE, METAL

Finds many useful applications in the laboratory, such as in resonance timing / wave shaping / oscillator experiments etc and also as capacitance substitution box. Accuracy ?2.5%
CAPACITANCE BOX, DECADE, DIAL TYPE, METAL

CAPACITANCE BOX, DECADE, DIAL TYPE, METAL

Finds many useful applications in the laboratory, such as in resonance timing / wave shaping / oscillator experiments etc and also as capacitance substitution box. Accuracy ?2.5%. 0-100nF x 10nF, 0-1000nF(1?F) x 100nF Total Capacitance 1100nF (1.10?F)
CAPACITANCE BOX, DECADE, DIAL TYPE, METAL

CAPACITANCE BOX, DECADE, DIAL TYPE, METAL

Finds many useful applications in the laboratory, such as in resonance timing / wave shaping / oscillator experiments etc and also as capacitance substitution box. Accuracy ?2.5%. 0-10nF x 1nF, 0-100nF x 10nF, 0-1000nF(1?F) x 100nF Total capacitance is 1110 nF (or 1.11?F).
CAPACITANCE BOX, DECADE, DIAL TYPE, METAL

CAPACITANCE BOX, DECADE, DIAL TYPE, METAL

Finds many useful applications in the laboratory, such as in resonance timing / wave shaping / oscillator experiments etc and also as capacitance substitution box. Accuracy ?2.5%. Four Decades 0-10nF x 1nF, 0-100nF x 10nF, 0-1000nF [1?F) x 100nF, 0-10?F x 1?F, Total capacitance is 11,110 nF (or 11.11?F)
CAPACITANCE BOX, DECADE, DIAL TYPE, METAL

CAPACITANCE BOX, DECADE, DIAL TYPE, METAL

Finds many useful applications in the laboratory, such as in resonance timing / wave shaping / oscillator experiments etc and also as capacitance substitution box. Accuracy ?2.5% Five Decades 0-1000pF(1?F) x 100pF 0-10nF x 1nF, 0-100nF x 10nF, 0-1000nF(1?F) x 100nF, 0-10?F x 1?F, Total capacitance is 11,111nF (or 11.111?F)
CAPACITANCE BOX, DECADE, DIAL TYPE, METAL  One Decade

CAPACITANCE BOX, DECADE, DIAL TYPE, METAL One Decade

Finds many useful applications in the laboratory, such as in resonance timing / wave shaping / oscillator experiments etc and also as capacitance substitution box. Accuracy ?2.5%. 0-100nF x 10nF
CAPACITANCE SUBSTITUTION BOX

CAPACITANCE SUBSTITUTION BOX

With 8 preferred value capacitors mounted on a small baseboard with terminals for connecting in a circuit. Values of capacitances available are 0.001, 0.0022, 0.0047, 0.01, 0.022, 0.047, 0.1 and 0.22?f rated at 100V DC. Desired value selectable through a rotary selector switch with positive click stops.
CAPILLARY TUBE APPARATUS

CAPILLARY TUBE APPARATUS

The appratus shows the relationship between capillary pressure or level of liquid in capillary and the bore diameter of the capillary tube. The apparatus comprises a rectangular sheet-metal frame, the base of which takes the form of a trough for holding water. The upper part of the frame supports six capillary tubes, each of a different bore, in the holed rubber bung with their lower ends resting in the trough underneath. The difference in heights of the resulting columns of water in each capillary tube is readily apparent. Length of capillary tubes about 150mm
Capillary Tubes

Capillary Tubes

Specifications : Size: 20 x 18 x 20 cm Weight: approx.190 g Mounted on base. COMPONENTS : • Capillary Tubes Glasswork • Base. LAWS & PRINCIPLES INVESTIGATED : • Capillarity • Jurin’s Law.