Electroscope Manufacturer,Supplier and Exporter in India
Product Code : EL-PL-12569
Jlab Export is a leading Electroscope Manufacturer,and suppliers in India
Electroscope (code EL-PL-12569) is a needle electroscope for detecting electric charge: charge placed on the disc at the top makes a light aluminium needle swing on its axle, behind glass front and back walls. The case measures 60 × 95 × 105 mm (2.4 × 3.7 × 4.1 in). JLab manufactures this electroscope in Ambala, India.
Specifications
| Parameter | Detail |
|---|---|
| Model | SCK939/028 |
| Indicator | Aluminium needle pivoting on an axle |
| Charge terminal | Disc at the top |
| Front and back walls | Glass |
| Size | 60 × 95 × 105 mm (2.4 × 3.7 × 4.1 in) |
| Quality check | Each electroscope 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-12569 |
| Manufacturer | Jain Laboratory Instruments Pvt Ltd (JLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
Reading the Needle
Charge put on the disc spreads down to the needle and the support it pivots against. Both now carry the same sign, so they repel and the needle swings out; a larger charge gives a wider deflection. The glass walls let the class watch the needle while keeping draughts off it.
Charging by Induction and Testing the Sign
Hold a charged rod near the disc without touching it, touch the disc with a finger to earth it, take the finger away and only then remove the rod: the electroscope keeps a charge opposite to the rod’s. To test an unknown charge, bring the object near the charged electroscope. A wider deflection means the same sign; a smaller one can mean the opposite sign or simply an uncharged conductor.
Related Charge Detectors
- Gold Leaf Electroscope — leaf type in a metal case with sliding glass panels.
- Pith Ball Electroscope — two pith balls on silk thread for attraction and repulsion.
- Wimshurst Machine — influence machine that supplies charge for electroscope demonstrations.
See Physics Lab for the other electrostatics apparatus.
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Last updated: 26 October 2026
