Electricity and Magnetism – Central Science Supplies https://centralscience.spiderns.com School and College Science Supplies Tue, 13 Oct 2026 17:16:19 +0000 en-GB hourly 1 https://wordpress.org/?v=7.1.3 High-Voltage Induction Coil 100mm https://centralscience.spiderns.com/product/high-voltage-induction-coil-100mm/ https://centralscience.spiderns.com/product/high-voltage-induction-coil-100mm/#respond Tue, 13 Oct 2026 17:16:19 +0000 http://centralscience.spiderns.com/product/high-voltage-induction-coil-100mm/ High-Voltage Induction Coil 100mm: Unleash the Power of Electricity
Dive into the fascinating world of electricity with our High-Voltage Induction Coil 100mm. This remarkable device is designed to amplify the power of DC current, transforming it into a high-voltage marvel through a contactless oscillator. In this article, we will explore the features and capabilities of the 100mm Induction Coil, an essential tool for scientific experiments and educational purposes.

Key Features of the High-Voltage Induction Coil 100mm:

  • Advanced Voltage Boost: The Induction Coil is engineered to provide an advanced voltage boost. It takes a low DC voltage as input and magnifies it to create a high-voltage output. This feature is particularly valuable for experiments and demonstrations that require high-voltage electricity. Whether you’re conducting experiments with spectral tubes, vacuum discharge tubes, or other scientific apparatus, this coil ensures you have the necessary power at your disposal.
  • Customizable Polarity and Frequency: What sets this induction coil apart is its ability to adapt to various experimental requirements. Users can easily switch the polarity of the high-voltage output, allowing them to explore the effects of different charge orientations. Additionally, the frequency can be adjusted, offering precise control over the electrical output. This flexibility enables a wide range of experiments, making it an indispensable tool for educators and researchers.
  • Safety and Stability at the Core: Safety is paramount when working with high-voltage equipment. The Induction Coil prioritizes the well-being of users and connected components. It acts as a stable voltage discharge source, effectively safeguarding any connected devices or apparatus from voltage spikes or irregularities. This feature not only enhances the longevity of your equipment but also minimizes the risk of accidents, ensuring a secure and controlled environment.
  • Impressive Discharge Distance: The coil boasts an impressive maximum discharge distance of up to 100 mm. This attribute is crucial for experiments that involve sparking, arc discharges, or other high-voltage phenomena. With this generous discharge distance, you have the space needed to conduct a diverse array of experiments, from illustrating the behavior of electric arcs to demonstrating the principles of electrical conduction.
  • Compact and Portable Design: Despite its potent capabilities, the Induction Coil maintains a compact and portable design. Measuring at 300 x 300 x 160 mm and weighing just 4.8 kg, it’s easily transportable between classrooms, laboratories, or research facilities. This portability ensures that you can share the benefits of high-voltage experimentation with students, colleagues, or fellow researchers across various settings.

Dimensions:

  • Size: 300 x 300 x 160 mm
  • Weight: 4.8 kg

The 100mm Induction Coil is a versatile and powerful tool that unlocks the mysteries of electricity for educational and scientific purposes. Its voltage-boosting capabilities, adjustable settings, and safety features make it an invaluable addition to any laboratory or classroom.

Notes: Please note that this device is intended for educational and scientific experimentation only. Safety precautions should be followed at all times when working with high-voltage equipment.

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GALVANOMETER SPOT REFLECTING https://centralscience.spiderns.com/product/galvanometer-spot-reflecting/ https://centralscience.spiderns.com/product/galvanometer-spot-reflecting/#respond Tue, 13 Oct 2026 17:14:04 +0000 http://centralscience.spiderns.com/product/galvanometer-spot-reflecting/ Suitable for Industrial Kelvin Double Bridge and Senior Kelvin Double Bridge. Galvanometer Resistance 125 ohms Nominal, Sensitivity 15mm scale division per micro amp., time period 2 second, critical damping resistance 1000 ohms and working voltage is 230 Volts. AC. 50 Hz.

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Precision Wheatstone Bridge Unit https://centralscience.spiderns.com/product/precision-wheatstone-bridge-unit/ https://centralscience.spiderns.com/product/precision-wheatstone-bridge-unit/#respond Tue, 13 Oct 2026 16:59:26 +0000 http://centralscience.spiderns.com/product/precision-wheatstone-bridge-unit/ Unlock Precision Wheatstone Bridge Unit for Accurate Resistance Analysis!
Dive into the world of precision with the Precision Wheatstone Bridge Unit, a powerful measuring device that leverages a bridge circuit to provide unparalleled accuracy in resistance analysis. This sophisticated instrument, equipped with built-in multistage resistors, ensures proportional measurement of unknown resistance, delivering reliable results for a variety of applications. Explore the features and capabilities of this remarkable device.

Key Features of Precision Wheatstone Bridge Unit:

  1. Bridge Circuit Technology: The heart of this device lies in its use of bridge circuit technology. This advanced circuitry allows for highly accurate and sensitive resistance measurements. The Wheatstone Bridge balances the ratio of known resistors to the unknown resistor, ensuring precise results. This technology is the cornerstone of its reliability.
  2. Built-in Multistage Resistors: One of the standout features of this device is its inclusion of built-in multistage resistors. These resistors play a crucial role in achieving proportional measurement of unknown resistance. By varying the resistance of the built-in resistors, you can fine-tune your measurements for a wide range of applications. This feature sets the Wheatstone Bridge apart as a versatile instrument.
  3. Galvanometer Current Indicator: To aid in your resistance analysis, the Wheatstone Bridge is equipped with a galvanometer current indicator. When the proportion between the built-in resistor and the measuring resistor doesn’t match, the galvanometer current provides a clear visual indication by moving to either the positive or negative side. This feature simplifies the process of identifying discrepancies in your measurements.
  4. Dimensions: With dimensions measuring 330x160x120mm, this device strikes a balance between portability and functionality. Its compact design ensures that it can fit into a variety of workspaces while still providing all the necessary features for precision resistance analysis.
  5. Configuration: The Wheatstone Bridge comes fully configured, including the necessary resistance for measurement. This means you can start using it right out of the box without the need for additional components or complex setup procedures. Its user-friendly configuration makes it accessible to both beginners and experienced users.
  6. Wide Measuring Range: This instrument boasts a wide measuring range, accommodating resistances from as low as 1Ω to as high as 11110Ω. This broad range makes it suitable for a diverse array of applications, from basic educational experiments to more complex analytical tasks. You can rely on it for a wide range of resistance analysis needs.

Dimensions:

  • Dimensions: 330x160x120mm

The Wheatstone Bridge is the go-to instrument for precision resistance measurement. Its innovative use of bridge circuit technology, built-in multistage resistors, and galvanometer current indicator ensure accurate and reliable results. With a wide measuring range, this device is versatile and essential for a variety of applications.

Notes: Please note that this device is designed for educational and analytical purposes. Always adhere to safety guidelines when working with electrical components.

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STUDENT MAGNETISM KIT https://centralscience.spiderns.com/product/student-magnetism-kit/ https://centralscience.spiderns.com/product/student-magnetism-kit/#respond Tue, 13 Oct 2026 16:42:09 +0000 http://centralscience.spiderns.com/product/student-magnetism-kit/ Kit consisting of:
2x Bar Magnet
1x Iron filings in box
1x Pocket compass
1x Earth-model for magnetic field of earth globe
1x Magnetic field sensor
1x Plug pin with needle
2x Supporting plate for bar magnets
4x Threaded bolt steel, L=40 mm
1x Insulating block with socket
1x Bearing bush for cylindrical magnets
1x Magnetic field plate
2x Pole lamination SE, 60 x 25 mm
1x Paper clip in container, set of 10
1x Paper clip with string
1x Test tube 16×150 mm, plastics
1x Magnetic field sheet
1x Magnetic rubber bar
1x Soft iron ring
1x Iron nails in box

Storage:
1x Box insert Magnetism, SE
1x Storage box II small, with cover,
Box -insert plan with 2 labels

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Compact Efficient Current Balance https://centralscience.spiderns.com/product/compact-efficient-current-balance/ https://centralscience.spiderns.com/product/compact-efficient-current-balance/#respond Tue, 13 Oct 2026 16:14:58 +0000 http://centralscience.spiderns.com/product/compact-efficient-current-balance/ Unlock Precise Measurements with our Compact Efficient Current Balance – Shop Now!
Discover the power of accurate measurements with our Compact Efficient Current Balance. This very clear, robust, and compact model is designed for determining the force of a current-carrying straight conductor in a homogeneous magnetic field, known as the Lorentz force. Ideal for both educational and training purposes, this balance provides insights into the interplay of conductor length and current strength. Elevate your experiments with a reliable tool that combines clarity and robustness.

Key Features of the Compact Efficient Current Balance:

  • Clear, robust, and compact design
  • Suitable for determining Lorentz force in a magnetic field
  • Compatible with electrical conductors of single and double cross-section
  • Detachable from three safety sockets for convenience
  • Transparent retaining bracket for secure placement

Dimensions:

  • Conductor Cross Section: 8×2 mm
  • Conductor Length: Each 35 mm
  • Strong Block Magnet: 80x40x15 mm with two pole plates
  • Dimensions: 110x100x135 mm
  • Weight: Approximately 600 g

Our Compact Magnetic Field Force Current Balance stands out with its versatile applications in physics experiments. The clear and robust design ensures easy comprehension, making it an ideal tool for educational environments. With compatibility for electrical conductors of single and double cross-section, this model offers flexibility in various experiments. The three safety sockets provide easy detachment, allowing seamless transitions between setups.

The transparent retaining bracket enhances visibility and ensures the secure placement of the electrical conductors. The inclusion of a strong block magnet (80x40x15 mm) with two pole plates guarantees the generation of a homogeneous magnetic field, a crucial factor in obtaining accurate measurements. The overall dimensions of 110x100x135 mm make this current balance a compact and space-efficient addition to any laboratory setting.

Unlock the potential of precise measurements in physics experiments with our Compact Magnetic Field Force Current Balance. Its clear, robust design and compatibility with various electrical conductors make it an essential tool for educational and training purposes. Elevate your experiments today and shop now!

Notes: Important: The items provided are models intended for educational and training purposes only. Use them strictly according to the manufacturer’s instructions, with safety as the topmost priority.

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MAGNETIZER https://centralscience.spiderns.com/product/magnetizer/ https://centralscience.spiderns.com/product/magnetizer/#respond Tue, 13 Oct 2026 16:14:24 +0000 http://centralscience.spiderns.com/product/magnetizer/ Devices that can penetrate strong magnetic fields to carbon steel’s dense steel and insert or remove magnetic force
It is magnetized by DC current and can be demagnetized by AC current.
Experimental method
① When you want to insert magnetic force, put the sample into the bobbin of the magnetizer and place the switch in the magnetization position and push it 2-3 times at intervals of 0.5 ~ 1 second.
② In case of de matching, put the switch in the demagnetizing position, push the push button as in the case of magnetization and take out the object slowly. Power AC 220 V, 2 magnetized balls

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RHEOSTATS, PROTECTED, 1000 OHM, 0.8Amp https://centralscience.spiderns.com/product/rheostats-protected-1000-ohm-0-8amp/ https://centralscience.spiderns.com/product/rheostats-protected-1000-ohm-0-8amp/#respond Tue, 13 Oct 2026 16:11:42 +0000 http://centralscience.spiderns.com/product/rheostats-protected-1000-ohm-0-8amp/ RHEOSTATS, PROTECTED, 1000?, 0.8Amp. Single tube, for use with high voltage upto 220V, fitted with 4mm socket terminals, with protected cover.

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RHEOSTATS, PROTECTED, 330 OHM, 1.4Amp https://centralscience.spiderns.com/product/rheostats-protected-330-ohm-1-4amp/ https://centralscience.spiderns.com/product/rheostats-protected-330-ohm-1-4amp/#respond Tue, 13 Oct 2026 16:11:41 +0000 http://centralscience.spiderns.com/product/rheostats-protected-330-ohm-1-4amp/ RHEOSTATS, PROTECTED, 330Ω, 1.4 Amp. Single tube, for use with high voltage up to 220V, fitted with 4 mm socket terminals, with protected cover.

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RHEOSTATS, PROTECTED, 100 OHM, 2.5Amp https://centralscience.spiderns.com/product/rheostats-protected-100-ohm-2-5amp/ https://centralscience.spiderns.com/product/rheostats-protected-100-ohm-2-5amp/#respond Tue, 13 Oct 2026 16:11:41 +0000 http://centralscience.spiderns.com/product/rheostats-protected-100-ohm-2-5amp/ RHEOSTATS, PROTECTED, 100Ω, 2.5 Amp. Single tube, for use with high voltage up to 220V, fitted with 4 mm socket terminals, with protected cover.

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RHEOSTATS, PROTECTED, 33 OHM,4.4Amp https://centralscience.spiderns.com/product/rheostats-protected-33-ohm4-4amp/ https://centralscience.spiderns.com/product/rheostats-protected-33-ohm4-4amp/#respond Tue, 13 Oct 2026 16:11:40 +0000 http://centralscience.spiderns.com/product/rheostats-protected-33-ohm4-4amp/ RHEOSTATS, PROTECTED, 33?, 4.4 Amp. Single tube, for use with high voltage up to 220V, fitted with 4 mm socket terminals, with protected cover.

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