Dip Circle Apparatus Manufacturer,Supplier and Exporter in India
Product Code : EL-PL-13409
Jlab Export is a leading Dip Circle Apparatus Manufacturer,and suppliers in India
Dip Circle Apparatus (code EL-PL-13409) measures the angle of dip, the angle the Earth’s magnetic field makes with the horizontal, using a balanced steel needle on jewelled bearings that swings in a vertical plane against a circular metal scale with an anti-parallax mirror. The apparatus is produced by JLab in Ambala, India, and comes with a second needle of the same size that is left unmagnetised.
Specifications
| Parameter | Detail |
|---|---|
| Model | JL308 |
| Needle | Steel, balanced on jewelled bearings, swings in a vertical plane |
| Scale | Circular metal scale with anti-parallax mirror |
| Rotation | Scale and mirror both rotate about a vertical axis |
| Base | Aluminium, marked at four quadrants |
| Spare needle | Dimensionally identical to the first, unmagnetised |
| Quality check | Each dip circle is visually inspected before dispatch |
| Pack quantity | Each (sold individually) |
| Minimum order quantity | 10 units |
| Dispatch time | Usually 4–6 working days |
| Product code | EL-PL-13409 |
| Manufacturer | Jain Laboratory Instruments Pvt Ltd (JLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
Finding the Magnetic Meridian and Reading the Dip
Level the base, then turn the scale and mirror about the vertical axis until the needle stands upright: the needle is now swinging in the east–west plane, where only the vertical part of the Earth’s field can turn it. A quarter turn from there, judged on the quadrant marks of the aluminium base, puts the needle in the magnetic meridian, where it comes to rest at the true angle of dip. Read both ends of the needle with the eye placed so that the needle hides its own image in the mirror.
Why the Spare Needle Is Unmagnetised
A balanced, unmagnetised needle on the same bearings stays at whatever angle it is set, which shows students that the dip of the first needle comes from its magnetism and not from its weight. The spare can also be magnetised in class and the readings repeated.
Related Magnetism Apparatus
- Deflection Magnetometer — a compass box on a scaled wooden base for comparing magnets.
- Magnetic Needle — a carbon steel needle on a brass cup bearing, with a plastic stand.
- Set of Devices to Investigate Earth’s Magnetic Field — magnets, a magnetic globe and clear compasses for field studies.
Other instruments for magnetism lessons are in Physics Lab.
Request a Quote
Put the dip circle in your enquiry using Add To Cart, or reach JLab on the contact page; say how many are needed and the delivery location.
Last updated: 26 October 2026
