Post Office Box-Plug Type (Constantan & Manganin Coil) Manufacturer,Supplier and Exporter in China
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Product Code : EL-E-14424
Quick answer: As a school science lab equipment supplier, Science Lab Supplies manufactures and exports the Post Office Box-Plug Type (Constantan & Manganin Coil), an apparatus within our Electrostatics range used across secondary school, higher secondary and undergraduate physics laboratories. The 3-Ratio P.O.
Description :
As a school science lab equipment supplier, Science Lab Supplies manufactures and exports the Post Office Box-Plug Type (Constantan & Manganin Coil), an apparatus within our Electrostatics range used across secondary school, higher secondary and undergraduate physics laboratories.
The 3-Ratio P.O. Box has sixteen non-inductively would coils 1, 2, 2, 5, 10, 20, 20, 50, 100, 200, 200, 500, 1000, 2000, 2000, 5000 ohms and two proportional arms each with coils of 10, 100, 1000, ohms.The 4-Ratio P.O. Box has sixteen coils as above and two proportional arms each with coils of 1, 10, 100, 1000, ohms.
Also incorporates infinity gap.
Two spring keys having good contact for battery and galvanometer is also provided.
The whole system is contained in a superior quality wood box.
Resistance between 0.1 and 1111000 ohms can be accurately measured using a DC battery.
Available in 3-Ratio and 4-Ratio.
P.O.Box 3-Ratio and 4-Ratio (Constantan coil) consists of 12mm & 14mm thick rectangular brass block and have accuracy ±0.1%.
P.O.Box 3-Ratio and 4-Ratio (Manganin coil) consists of 12mm & 14mm thick rectangular brass block and have accuracy ±0.05%.
Institutions sourcing electrostatics lab equipment for their physics laboratories use the Post Office Box-Plug Type (Constantan & Manganin Coil) to support hands-on experimentation aligned with school and college syllabi. As part of a broader STEM lab apparatus setup, it complements other Electrostatics range instruments to build a complete teaching kit for a physics department.
Quality control checks are carried out before dispatch to confirm the Post Office Box-Plug Type (Constantan & Manganin Coil) meets stated specifications, helping schools and colleges standardise equipment quality across multiple laboratory setups.
See also the Zinc Plate with 4mm Plug for Electroscope for related Electrostatics experiments, or browse the full Electrostatics range. Contact our team via Contact Us for an indicative export quotation.
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See also Electrostatic Pompon, Meter Bridge and Pencil Jockey, Electric Condector from the same Electrostatics range.
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Exact technical specifications, materials and certifications should be confirmed with our team before ordering. Models are updated from time to time, so please contact us for the current product datasheet.
