Galvanometer 30-0-30 mA
Product Code : LSK-PL-10320
Galvanometer 30-0-30 mA (SKU LSK-PL-10320) is a centre-zero moving coil meter reading up to 30 mA either side of zero, so students see both the size and the direction of a current. Colour-coded 4 mm socket terminals make it quick to connect in school and college practicals. Science Lab Supplies manufactures the meter in its own facility at Plot 448, HSIIDC Industrial Area, Saha, Ambala, India, and handles every quotation for schools, colleges, tender contractors and distributors there.
Specifications
Range, movement, terminals and case size of the 30-0-30 mA meter each have a row below. In short, it is a moving coil meter whose pointer rests at the centre and swings left or right with the current direction, connected through colour-coded 4 mm socket terminals in a 125 x 80 x 80 mm case.
| Specification | Value |
|---|---|
| SKU | LSK-PL-10320 |
| Range | 30-0-30 mA |
| Zero position | Centre zero |
| Movement | Moving coil |
| Terminals | 4 mm socket terminals |
| Terminal marking | Colour coded |
| Dimensions | 125 x 80 x 80 mm |
| Manufacturer | Science Lab Supplies, Saha, Ambala, Haryana |
| Country of origin | India |
Applications and Experiments for the Galvanometer 30-0-30 mA
A centre-zero galvanometer suits any practical where current can flow either way: it shows induced currents from a moving magnet and finds the balance point in bridge circuits. For labs choosing a school galvanometer in India, its 30 mA range covers induction demonstrations and general current detection on the bench.
- NCERT Class 10 science: current induced in a coil by a moving magnet, for example in the Induction Coils with Cores.
- Class 12 physics (Electromagnetic Induction): direction of induced current and Lenz's law.
- Class 12 practicals: null detection on the Meter Bridge or Wheatstone Bridge With Pencil Jockey and in potentiometer circuits.
Standard Scope of Supply
The Galvanometer 30-0-30 mA is supplied as a single meter as described above, with its colour-coded 4 mm socket terminals. Coils, magnets and connecting leads for induction experiments can be added to the same quotation if the lab needs them for a complete bench.
Packing, MOQ and Lead Time
You can ask for a single galvanometer or a quantity for every practical bench. The resulting quotation gives packing, delivery time and price for that number, and other physics lab equipment in India, such as coils, magnets or leads, can be quoted on it.
Science Lab Supplies, registered as an exporter under an Importer-Exporter Code, can ship to buyers in Ghana, Ethiopia, Tanzania, Uganda, the UAE and Saudi Arabia. The business is registered under Udyam as a manufacturing enterprise (UDYAM-HR-01-0014546) and for GST (GSTIN 06ADEPJ0574F2ZU). Meter quantities for an induction or bridge bench can be requested on the contact page or added to the enquiry cart; the lab tender page handles bids.
Frequently Asked Questions
What does 30-0-30 mA mean?
It means the zero is at the centre of the scale and the meter reads up to 30 mA on either side. The pointer direction therefore shows which way the current is flowing.
How is the galvanometer connected?
Through colour-coded 4 mm socket terminals, which accept 4 mm plug leads and make polarity easy to follow. The meter case measures 125 x 80 x 80 mm.
Is Science Lab Supplies the manufacturer or a trader?
Centre-zero meters of this range are built by Science Lab Supplies in its Saha, Ambala factory, making it the manufacturer; your quotation and the dispatch of the meters both come from that site in India.
Can it be used for induction experiments?
Yes. Because it is a centre-zero moving coil meter, it shows the induced current swinging one way as a magnet enters a coil and the other way as it leaves.
Related Meters, Galvanometers and Induction Apparatus
These seven items share the galvanometer's bench: a more sensitive centre-zero meter, a tangent and a ballistic galvanometer, a demonstration meter for the whole class, an ammeter for bigger currents and two induction set-ups. Together they cover current detection and measurement on one quotation.
- Galvanometer — centre-zero demonstration meter, -500 to 500 µA, ±2.5%.
- Tangent Galvanometer — coil with 2, 50 and 500 turn windings on a non-magnetic tripod base.
- Ballistic Galvanometer — mirror-coil movement for very low currents, in 100 Ω and 500 Ω versions.
- Demonstration Meter — 300 x 150 x 300 mm moving coil meter with interchangeable plastic scales.
- Ammeter — 0–10 A analog meter in a desk-stand case.
- Apparatus for Studying the Production of Electricity by Induction — 700- and 1150-turn coils with a 30-0-30 galvanometer and 4 mm leads.
- Lenz's Law — open and closed loops for Faraday's and Lenz's laws.
Browse the full Physics Lab range, the Lab Meters range for galvanometers and demonstration meters, or all physics lab equipment.
Last updated: 22 October 2026
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