Physics & Electronic Laboratory Apparatus Archives - Page 31 of 58 - PVG INTERNATIONAL

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VMounted on a wooden base, diameter of dome 175 mm., diameter of discharge sphere 75 mm., driven by a pulley with a handle. Overall Dimensions 350x200x480 mm. ebonite handle 75 mm. long and a small brass contact sphere.

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Physics & Electronic Laboratory Apparatus

MS-417 PVG VAN DE GRAFF GENERATOR, HAND DRIVEN

A Van de Graaff generator is an Electrostatic generator which uses a moving belt to accumulate Electric charge on a hollow metal globe on the top of an insulated column, creating very high electric potentials. It produces very high voltage Direct current and electricity at low current levels. Produces visible electric sparks. A Van de Graaff generator is an electrostatic generator capable of producing high voltages. It creates an imbalance of charges from the interaction between its roller, belt, and metal comb assembly. It initially allows charges to move along the insulated belt, then stores and distributes them uniformly on the sphere's surface. The metal sphere then discharges by creating sparks or crackling noises. Excellent Instrument for teaching Electrostatic to student Motorised model all working parts are clearly visible, The moving Rubber belt carries a positive charge to the top comb (usually a stretched wire) and then transferred to the large dome. A huge charge can be built on this dome by allowing the unit to run for a while, this charge will remain until it is discharged, either through air or by conduction to an earthed object i.e a metal sphere. Motor housed in a metal box, removable aluminium conducting sphere, Discharging sphere, sparks can be observed from a longer distance.

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Physics & Electronic Laboratory Apparatus

MS-418 PVG VAN DE GRAFF GENERATOR, MOTOR DRIVEN

ELECTRIC FIELD APPARTUS. Used to give visual demonstration of electric fields. This consists of a flat, transparent plate or grid with a set of conductive electrodes embedded in it, and a power supply that generates an electric field between the electrodes. A transparent plastic base 150mm square, support a dish 100mm diameter and two 4mm socket terminals, mounted on insulating pillars. Complete with two wire point electrodes to provide a parallel field. Two point electrodes are mounted through side pillars When connected to power supply electric field lines are clearly visible around and between the electrodes.

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Physics & Electronic Laboratory Apparatus

MS-419 PVG ELECTRIC FIELD APPARATUS

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Physics & Electronic Laboratory Apparatus

MS-42 PVG WIRES

Four aluminum vessels in graded size. Largest pail 145 x 125 mm., height x diameter. Smaller pails are each fitted with three feet.

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Physics & Electronic Laboratory Apparatus

MS-420 PVG FARADAY ICE PAILS

For demonstration of Gauss’s Law for distribution of charge and the dependence of field strength near a conductor on its radius of curvature. Comprises a hollow cone 120 x 50 mm., a cylinder 120 x 50 diameter and a sphere of 50 mm. diameter. Narrow end of hollow cone is rounded to make good contact with a proof plane and to reduce charge leakage. Each mounted on insulated pillars with bakelite base

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Physics & Electronic Laboratory Apparatus

MS-421 PVG CONDUCTORS, SET OF THREE

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Physics & Electronic Laboratory Apparatus

MS-422 PVG ELECTROSCOPE, PITH BALL

Consist of a 100 ml. conical borosilicate flask. A brass rod passes through a cork which seals the mouth of flask, upper end of which is in the form of a disc and at lower end gold leaf is attached

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Physics & Electronic Laboratory Apparatus

MS-423 PVG GOLD LEAF ELECTROSCOPE FLASK TYPE

GOLD LEAF ELECTROSCOPE A scientific instrument used to assess the presence of electrical charges on a body is known as an Electroscope. A gold-leaf electroscope is electroscope that consists of gold leaves and is used for detecting the electrical charge of the body. Strongly constructed ,powder coated, sheet metal walls of the electroscope and are mounted on a plastic base. Front glass window slides up to allow insertion of ionizing material in chamber. Transparent scale is attached inside chamber to measure the deflection of the gold leaf. When a charged object touches the electroscope's brass disc, the electric charge gets transferred to the gold leaves through the rod. This results in the gold leaves moving away from each other as like charges repel each other. The movement of the leaves shows the presence of charges in a body. The gold leaves return to their normal position after some time. This happens because they lose their charge after a while. This process is called electrical discharge. The charges in the gold leaves would also be discharged when someone touches the brass rod with empty hands. In that case, the charges are transported to the earth through the human body.

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Physics & Electronic Laboratory Apparatus

MS-424 PVG GOLD LEAF ELECTROSCOPE

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Physics & Electronic Laboratory Apparatus

MS-425 PVG GOLD LEAF ELECTROSCOPE

WHIMSHURST MACHINE

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Physics & Electronic Laboratory Apparatus

MS-426 PVG WHIMSHURST MACHINE

ELECTRIC WHIRL

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Physics & Electronic Laboratory Apparatus

MS-427 PVG ELECTRIC WHIRL