To measure the diameter of a given wire and thickness of a given sheet using screw gauge. (Economical)

APPARATUS SUPPLIED WITH THIS EXPERIMENT

1. SCREW GAUGE (IRON ROD TYPE)
2.  A PIECE OF WIRE 

A screw gauge, or micrometer screw gauge, is a precision measurement instrument used to determine the thickness or diameter of thin objects with high accuracy. It operates on the principle of a screw, where small rotations of the thimble are converted into precise linear movements of the spindle, making it ideal for measuring wires and thin metallic sheets.

Technical Specifications:
* Measuring range: 0-25 mm
* Least count: 0.01 mm
* Accuracy: ±0.005 mm
* Spindle diameter: 6.35 mm
* Thimble and sleeve finish: Satin chrome
* Frame type: Drop-forged iron with baked enamel finish