--- product_id: 806270883 title: "Labcare Helmholtz Galvanometer | Precision Magnetic Field Measurement Instrument | Dual Coil Physics Laboratory Apparatus for Electromagnetism Experiments" price: "$243.00" currency: USD in_stock: true url: https://www.desertcart.us/products/806270883-labcare-helmholtz-galvanometer-precision-magnetic-field-measurement-instrument-dual-coil store_origin: US region: United States of America --- # Dual-coil uniform magnetic field High-contrast easy-read scale Adjustable current for variable field strength Labcare Helmholtz Galvanometer | Precision Magnetic Field Measurement Instrument | Dual Coil Physics Laboratory Apparatus for Electromagnetism Experiments **Price:** $243.00 **Availability:** ✅ In Stock ## Summary > 🧲 Master Magnetism with Precision and Poise ## Quick Answers - **What is this?** Labcare Helmholtz Galvanometer | Precision Magnetic Field Measurement Instrument | Dual Coil Physics Laboratory Apparatus for Electromagnetism Experiments - **How much does it cost?** $243.00 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/806270883-labcare-helmholtz-galvanometer-precision-magnetic-field-measurement-instrument-dual-coil) ## Best For - Customers looking for quality international products ## Why This Product - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Effortless Readability:** Large, high-contrast scale markings reduce errors and speed up data collection for efficient lab sessions. - • **Vibration-Free Stability:** Robust base design eliminates external disturbances, ensuring needle accuracy and smooth readings every time. - • **Customizable Field Strength:** Adjust current input seamlessly to explore magnetic field variations and deepen experimental insights. - • **Precision Uniform Magnetic Field:** Dual Helmholtz coils deliver an exceptionally stable and uniform magnetic field for flawless electromagnetism experiments. - • **Ultra-Sensitive Current Detection:** Galvanometer needle detects even the faintest currents, empowering advanced physics research and hands-on learning. ## Overview The Labcare Helmholtz Galvanometer is a high-precision physics lab instrument featuring a dual-coil Helmholtz configuration that creates a uniform magnetic field. It includes a sensitive galvanometer needle for detecting weak currents, a sturdy vibration-free base for stable readings, adjustable current input for variable magnetic field strength, and a clear, easy-to-read scale designed to enhance accuracy and learning in electromagnetism experiments. ## Description Product Description Uniform magnetic field When current flows through both coils in the same direction, the magnetic fields add up. The decrease in field strength from one coil as you move away from it is compensated by the increase in field strength from the other. The Labcare Helmholtz Galvanometer The Labcare Helmholtz Galvanometer is a precision instrument used in physics laboratories to measure very small electric currents. Its primary advantage over a standard tangent galvanometer is that it produces a uniform magnetic field over a much larger volume, which leads to more accurate readings The Compass Box A small compass box is mounted at the midpoint between the two coils. Because the field is uniform there, slight shifts in the needle's position don't cause significant errors. Formula for Calculation The magnetic field $B$ at the midpoint between the two coils is calculated using the formula $$B = \left( rac{4}{5} ight)^{3/2} rac{\mu_0 n I}{R}$$ Where $n$ = Number of turns in each coil. $I$ = Current flowing through the coils. $R$ = Radius of the coils. $\mu_0$ = Permeability of free space ($4\pi imes 10^{-7} \, ext{T}\cdot ext{m/A}$). ## Features - High-Precision Helmholtz Coil Configuration : Features a perfectly spaced dual-coil structure that creates an exceptionally uniform magnetic field, enabling highly accurate demonstrations and experiments in electromagnetism. - Sensitive Galvanometer for Measuring Weak Currents : Equipped with a precision galvanometric needle system capable of detecting minute current variations, making it ideal for advanced physics studies and laboratory research. - Sturdy & Vibration-Free Base Structure : Constructed with a solid base that minimizes external disturbances, ensuring smooth needle movement and precise reading accuracy during practical sessions. - Adjustable Current Input for Variable Field Strength : Allows controlled current variations so students and researchers can study relationships between coil current and magnetic field intensity with clarity and precision. - Clear, Easy-to-Read Galvanometer Scale : Large, high-contrast scale markings enable students to take readings quickly and accurately, improving practical understanding and reducing observational errors. ## Images ![Labcare Helmholtz Galvanometer | Precision Magnetic Field Measurement Instrument | Dual Coil Physics Laboratory Apparatus for Electromagnetism Experiments - Image 1](https://m.media-amazon.com/images/I/41WtDN91mSL.jpg) ![Labcare Helmholtz Galvanometer | Precision Magnetic Field Measurement Instrument | Dual Coil Physics Laboratory Apparatus for Electromagnetism Experiments - Image 2](https://m.media-amazon.com/images/I/61wu3x2xBjL.jpg) ![Labcare Helmholtz Galvanometer | Precision Magnetic Field Measurement Instrument | Dual Coil Physics Laboratory Apparatus for Electromagnetism Experiments - Image 3](https://m.media-amazon.com/images/I/61NZJbsDX-L.jpg) ![Labcare Helmholtz Galvanometer | Precision Magnetic Field Measurement Instrument | Dual Coil Physics Laboratory Apparatus for Electromagnetism Experiments - Image 4](https://m.media-amazon.com/images/I/61qFLYQhmQL.jpg) ![Labcare Helmholtz Galvanometer | Precision Magnetic Field Measurement Instrument | Dual Coil Physics Laboratory Apparatus for Electromagnetism Experiments - Image 5](https://m.media-amazon.com/images/I/61pEVLLOx8L.jpg) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/806270883-labcare-helmholtz-galvanometer-precision-magnetic-field-measurement-instrument-dual-coil](https://www.desertcart.us/products/806270883-labcare-helmholtz-galvanometer-precision-magnetic-field-measurement-instrument-dual-coil) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-07-08*