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Post Office Box-Plug Type (Constantan & Manganin Coil)
Precision Alloy Coils: Employs non-inductively wound Manganin or Constantan coils, specifically selected for their negligible temperature coefficient and high resistivity to ensure measurement stability across varying thermal environments.
Professional-Grade Construction: Features heavy, CNC-machined brass blocks and interchangeable tapered plugs with insulated heads, housed within a polished, kiln-dried teakwood enclosure for superior insulation resistance and long-term structural durability.
₹1,820.00
Quick Answer: A Post Office Box, a Wheatstone bridge variant for determining unknown electrical resistance, using Constantan and Manganin coils.
Price: This listing does not currently show a published price on stemaids.com — contact STEMAids directly for an indicative quotation.
Product Description
This Post Office Box is a Wheatstone bridge variant designed for determining unknown electrical resistance. Used in physics laboratories, it facilitates circuit analysis and cable fault location. Using plug-and-socket configurations with Constantan and Manganin coils, it offers a manual interface for DC bridge measurements.
Specifications
| Specification | Detail |
|---|---|
| Type | Post Office Box (plug type) |
| Coil material | Constantan and Manganin |
| Principle | Wheatstone bridge |
| Used for | Unknown resistance determination, cable fault location |
Applications / Uses
- Determining unknown electrical resistance
- Circuit analysis
- Cable fault location
- DC bridge measurement instruction
Care & Maintenance
- Keep plugs clean and free of corrosion for reliable contact
- Insert and remove plugs carefully to avoid bending
- Store in a dry environment
- Follow the manufacturer’s instructions for correct bridge balancing procedure
Why Choose STEMAids
STEMAids, a brand of Eduscope Smart Learning Solutions Private Limited, supplies physics lab equipment and teaching aids to schools, colleges, and training institutes across India, with export and bulk tender support available. Explore related products in our Physics Equipments category, including our Resonance Box with Tuning Forks. For bulk or institutional orders, visit our tenders page or contact us at 9311411822.
Frequently Asked Questions
What is a Post Office Box used for?
Determining unknown electrical resistance and locating cable faults, using the Wheatstone bridge principle.
What coil materials does it use?
Constantan and Manganin, both low-temperature-coefficient resistance alloys.
Is it related to other resistance apparatus?
Yes, related to the Resistance Box Plug Type, and to the Meter Bridge / Wheatstone Bridge — all apply the Wheatstone bridge principle.
What does ‘plug type’ mean?
Resistance values are selected using plug-and-socket connections.
What is the indicative price for this product?
This listing does not currently show a published price on stemaids.com — contact STEMAids directly for an indicative quotation.
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