Electrostatics & Sound Manufacturer, Suppliers and Exporter in India
Educational Instrument is leading Electrostatics & Sound Manufacturer,and supplier and Exporter in India, Algeria (Algiers), Angola (Luanda), Argentina (Buenos Aires), Armenia (Yerevan), Australia(Canberra), Austria (Vienna), Bahrain (Manama), Bangladesh (Dhaka), Bhutan (Thimphu), Bolivia (Sucre), Botswana (Gaborone), Brazil (Brasília), Brunei (Bandar Seri Begawan), Montenegro (Podgorica), Morocco (Rabat), Mozambique (Maputo), Myanmar (Naypyidaw), Namibia (Windhoek), Nepal (Kathmandu), New Zealand (Wellington), Nigeria (Abuja), Oman (Muscat), Palestine (Ramallah), Panama (Panama City), Papua New Guinea (Port Moresby), Paraguay (Asunción), Peru (Lima), Philippines (Manila)¸ Portugal (Lisbon), Qatar (Doha), Rwanda (Kigali), Saudi Arabia (Riyadh), Senegal (Dakar), Serbia (Belgrade), Sierra Leone (Freetown), Slovakia (Bratislava), South Africa (Cape Town) (Pretoria) (Bloemfontein), South Sudan (Juba), Spain (Madrid), Sri Lanka (Sri Jayawardenepura Kotte) (Colombo), Sudan (Khartoum), Syria (Damascus), Tanzania (Dodoma), Thailand (Bangkok), Togo (Lomé), Tonga (Nuku'alofa), Trinidad and Tobago (Port of Spain), Tunisia (Tunis), Turkey (Ankara), Turkmenistan (Ashgabat), Uganda (Kampala), United Arab Emirates (Abu Dhabi), United Kingdom (London), United States (Washington, D.C.)
Electrostatics and sound apparatus from Educational Instrument is listed here for physics practicals and demonstrations: electroscopes, friction rods, Wimshurst machines and Van de Graaff generators, sonometers, tuning forks, ripple tanks and resonance apparatus, with magnetism and electrical circuit items. The listing shows 118 items, including a Wimshurst machine, a Kundt's tube, a ripple tank and a Welch-type tuning fork set of 8.
Last updated: October 2026
Electrostatics and sound range at a glance
| Group | Items listed | Examples |
|---|---|---|
| Sound and wave apparatus | 37 | One-string metallic sonometer, Ripple tank, Kundt's tube, Stationary wave apparatus, Acoustic signal generator, Doppler effect kit |
| Electrostatics apparatus | 32 | Electroscope, Set of 5 friction rods, Volta's electrophorus, Faraday's cage, Leyden jar, Van de Graaff generator |
| Magnetism and electromagnetism | 20 | Solenoid model, Biot's conductor, Magnetic effect of current kit, Magnets kit, AC/DC dynamo model |
| Electrical circuits and measurement | 16 | Decade resistance box, Decade capacitance box, Digital multimeter, Logic gates experiment kit, Spot reflecting galvanometer |
| Demonstration models and other items | 13 | Ring launcher model, Electric crane model, Satellite communication model, Force and friction model |
How to choose
- Electrostatic generators: two Wimshurst machines (premium and economic versions) and two Van de Graaff generators, one of them hand driven, are listed; the Leyden jar is listed for use with a charge source such as a Van de Graaff generator or an electrophorus.
- Tuning forks: the Welch-type set of 8 runs from 256 Hz (C) to 512 Hz (C), and a tuning fork with resonance box is listed for resonance work.
- Standing waves: the one-string metallic sonometer, the stationary wave apparatus and Kundt's tube cover string and air-column experiments.
- Circuit measurement: the digital multimeter has a 3.5-digit, 1999-count LCD for AC/DC voltage, DC current and resistance, and the decade capacitance box is listed at ±2.5% at 1 kHz.
- Digital electronics: the logic gates experiment kit works at 5 V TTL logic levels.
Frequently asked questions
What does the Electrostatics and Sound listing include?
It shows 118 items in five groups: 37 sound and wave items, 32 electrostatics items, 20 magnetism and electromagnetism items, 16 electrical circuit and measurement items and 13 demonstration models and other items.
Which electrostatics apparatus is listed?
Electroscopes, friction rods and silk cloth, Volta's electrophorus, Wimshurst machines, Van de Graaff generators, Coulomb's sphere, spherical and cylindrical conductors, a Leyden jar, a plate capacitor, an electric whirl, an electrostatic bell and an electrometer with accessories.
Which sound measurement instruments are available?
A digital phonometer for sound level in decibels, an acoustic frequency signal generator, loudspeakers, a piezoelectric microphone, an amplifier and an apparatus to measure the velocity of sound in air are listed.
Is a ripple tank listed?
Yes. The ripple tank demonstrates reflection, refraction, diffraction and interference of water waves, and a trolley for the ripple tank is listed separately.
Does this listing include microwave experiments?
Yes. The microwaves optics kit demonstrates reflection, refraction, diffraction, interference and polarisation of microwaves. The X-band microwave bench is listed under Microwave X-band Bench.
Related ranges
For optics apparatus, see Optical Sectional; for magnets and compasses, see Magnetism; for meter bridges and electrical meters, see Meter Bridge and Various Type of Bridges; and for electronic apparatus, see Electronic Instruments.
Request a quotation
For a quotation on items such as the Wimshurst machine or the sonometer, contact Educational Instrument.
Alnico Bar Magnet
Product Code : EL-MES-10432
An excellent pair of Alnico Bar Magnets that are exceedingly strong for their size and will resist demagnetizing conditions.
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Alnico Horse Shoe Magnet
Product Code : EL-MES-10433
Highly effective when high magnetic strength is required.
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Electromagnet
Product Code : EL-MES-10434
A coil is wound on each arm of a U shape bar of soft iron.
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Electromagnet
Product Code : EL-MES-10435
Demonstrates how electric current can be used to generate very strong magnetic fields.
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Magnetic Compass
Product Code : EL-MES-10436
Magnetic Compass. The dial shows cardinal points.
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Vibration Magnetometer
Product Code : EL-MES-10437
Complete with one bar magnet and one brass bar. All metal parts are of magnet and one brass bar.
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Compass Box
Product Code : EL-MES-10438
For deflection magnetometer or tangent galvanometer.
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Helmholtz Galvanometer
Product Code : EL-MES-10441
It consists of two equal coaxial coils (parallel to each other) separated by a distance equal to the radius of the coils.
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Magnetic Field Apparatus
Product Code : EL-MES-10442
To demonstrate the production of magnetic field by current in a solenoid.
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Magnetizing and Demagnetizing coil
Product Code : EL-MES-10443
Low voltage, suitable for magnetizing and demagnetizing ordinary magnets, iron bars, strips etc.
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Gold Leaf Electroscope
Product Code : EL-MES-10444
Rectangular sheet metal case mounted in insulated base and provided with removable front and back sliding glass panels, one clear and other ground, respectively.
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Gold Leaf Electroscope-Flask Type
Product Code : EL-MES-10445
Gold Leaf Electroscope-Flask Type
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Earth Inductor
Product Code : EL-MES-10446
This is an improved form comprising a coil of different number of turns ( 500, 1000, 2000 or 5000 turns) of 36 SWG copper wire wound on an aluminum metal ring (150 mm dia.).
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Slotted Weight (Iron powder coated)
Product Code : EL-MES-10447
Slotted Weight (Iron powder coated)
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Electromagnet and Transformer for Sonometer
Product Code : EL-MES-10448
These items are used to determine the frequency of A.C. mains by sonometer method.
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Reflection of Sound Apparatus
Product Code : EL-MES-10450
For proving that angles of incidence and reflection are equal for any setting.
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Ripple Tank Apparatus
Product Code : EL-MES-10451
A specially designed versatile apparatus for the investigation of the wave properties, such as wave propagation, reflection, refraction, diffraction and interference.
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Resonance Apparatus
Product Code : EL-MES-10452
Resonance Apparatus (Stainless Steel Pipe of 1 dia.). A heavy Stainless steel tube 1.10 mm in length x 25 mm dia. is mounted next to a meter scale.
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Tuning Fork (WELCH Type, Light Weight)
Product Code : EL-MES-10453
Tuning Fork (WELCH Type, Light Weight)
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Meldes Apparatus (OSAW Pattern)
Product Code : EL-MES-10454
This massive and powerful fork which has a frequency of approximately 60 vibrations per sec., is ideal for producing standing waves and is mounted on a heavy cast iron base.
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Demonstration Transformer
Product Code : EL-MES-10455
A large scale transformer, ideal for classroom. The coils are fitted with intermediary outputs providing many transformation ratios.
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Demonstration Transformer
Product Code : EL-MES-10456
For demonstrating the basic principle of operation of the transformers.
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Kundts Tube Deluxe Pattern
Product Code : EL-MES-10457
A glass tube 100 cm long and 3.8cm in diameter is mounted in a 'Y' on a metal base.
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Force and Friction Model
Product Code : SCL-ES-11427
This apparatus allows students to conduct controlled experiments to investigate the fundamental relationship between applied force, normal force, and the opposing force of friction.
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Anemometer Model
Product Code : SCL-ES-11429
This teaching apparatus is essential for Earth Science and Physics labs, providing a hands-on understanding of weather instrument operation.
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Dynamo Model AC DC
Product Code : SCL-ES-11433
The Educational Instruments Dynamo Model AC/DC is an innovative piece of Physics Science educational laboratory equipment designed to provide a hands-on, interactive understanding of electricity generation and the fundamental principles of electromagnetic
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Electrical Transformer Model
Product Code : SCL-ES-11435
The Educational Instruments Electrical Transformer Working Model is a vital piece of Physics Science educational laboratory equipment designed to illustrate the principles and function of a transformer.
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Transverse and Longitudinal Wave using Slinky
Product Code : SCL-ES-11436
The Educational Instruments Wave Demonstration Kit featuring a high-quality Slinky is a universally recognized piece of Physics Science educational laboratory equipment for teaching wave mechanics.
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Tuning Fork Set of 8 – Welch Type
Product Code : SCL-ES-11438
The Educational Instruments Tuning Fork Set of 8 (Welch Type) is a fundamental and indispensable piece of Physics Science educational laboratory equipment for teaching acoustics and wave properties.
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Spot Reflecting Galvanometer
Product Code : SCL-ES-11440
The Educational Instruments Spot Reflecting Galvanometer is a classic and highly sensitive piece of Physics Science educational laboratory equipment used for the detection and measurement of extremely small electric currents (often in the microampere rang
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Pulley Demonstration Model
Product Code : SCL-ES-11463
The Pulley Demonstration Model is a classic physics apparatus and an essential piece of STEM educational laboratory equipment designed to clearly explain the principle of force redistribution and the concept of simple machines.
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Ring Launcher Model
Product Code : SCL-ES-11464
The Ring Launcher Model is a powerful and fascinating physics demonstration apparatus designed to clearly explain the principles of electromagnetic induction and Lenz’s law.
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Water Cycle Model
Product Code : SCL-ES-11465
The Water Cycle Model is an engaging, visual educational tool and an essential piece of STEM laboratory equipment designed to clearly demonstrate the continuous natural process of the water cycle.
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Fire Alarm Model
Product Code : SCL-ES-11466
The Fire Alarm Model is a simple yet highly effective STEM educational tool and physics laboratory apparatus designed to demonstrate the fundamental working principle of thermal fire alarms using a bimetallic strip.
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Zoetrope Model
Product Code : SCL-ES-11467
The Zoetrope Model is a fascinating and engaging educational tool used in physics labs and STEM classrooms to demonstrate the core principle behind visual media
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Electric Crane Model
Product Code : SCL-ES-11468
The Electric Crane Model is an excellent educational demonstration tool and STEM laboratory apparatus designed to explain the practical application of electromagnets in lifting and transporting heavy metal loads.
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Solenoid Model
Product Code : SCL-ES-11469
The Solenoid Model is an essential hands-on educational apparatus and physics laboratory tool meticulously designed to demonstrate the fundamental magnetic field generated by a current-carrying coil.
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Shape of Earth due to Rotation
Product Code : SCL-ES-11470
The Shape of Earth Due to Rotation Model is an insightful scientific demonstration tool and essential physics laboratory apparatus designed to visually prove that the Earth is not a perfect sphere but an oblate spheroid.
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Satellite Communication Model
Product Code : SCL-ES-11471
The Satellite Communication Model is an essential classroom demonstration tool and STEM learning apparatus designed to clearly explain the complex process of wireless communication between an Earth station and an orbiting satellite.
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Device for showing the flux lines of the electric field
Product Code : SCL-ES-12916
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