Name: Post Office Box (PO Box) for Physics Practical
Brand: Indian
SKU: 35594
Availability: InStock

Post Office Box (PO Box) for Physics Practical

৳ 4,200.00

Deshi Post Office Box 1 Set
Measure an unknown resistance
Premium Quality PO Box
Made in India

1 in stock

Description

A post office box is a compact form of Wheatstone’s bridge. A Post Office Box can also be used to measure an unknown resistance. It is a Wheatstone Bridge with three arms, P, Q, and R, while the fourth arm is the unknown resistance. P and Q are known as the ratio arms, while R is known as the rheostat arm.

Post Office Box (PO Box) for Physics Practical Class & Exam

Plug-in type. The heavy brass contact blocks are bonded to the vulcanite by a double nut system. The plugs & lugs are cut to a finer taper & are interchangeable. The plug heads are machine-molded of bakelite.

Each resistor is independently mounted with double leads. The accuracy of Constantan coils is 0.1% for lower values & 0.5% for higher values. Resistor: the best-imported constant wire is wound on ebonite spools; the method adopted is non-inductive & non-magnetic. Each resistor is dipped in boiling wax. Provided as above with 3 ratio coils of 1000, 100 & 10 ohms. Rheostat arm 15,000 ohms. Two tapping keys with silver contacts are provided for the battery & galvanometer in a teakwood case with a hinged lid.

Overall dimensions: 280x200x175mm approx.
Premium Quality PO Box
Made in India
Note: Product Color and size may differ from the picture.

Additional information

Weight	3 kg
Dimensions	12 × 8 × 6 cm

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About brand

Non-brand Indian scientific instruments are available under this category.

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Delivery within 1-3 working days in Dhaka City and 3-5 working days anywhere in Bangladesh.

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