Write the steps to measure the diameter of a thin wire using screw gauge.
Write the steps to measure the diameter of a thin wire using screw gauge.
To measure the diameter of a thin wire using screw gauge, we need to follow the following steps:
1. Determine the Pitch, the Least Count and the Zero Error of the Screw Gauge.
2. Place the wire between the two studs.
3. Rotate the head until the wire is held firmly but not tightly, with the help of ratchet.
4. Note the reading on the pitch scale crossed by the head scale (P.S.R) and the head scale division that coincides with the pitch scale axis (H.S.C).
5. The diameter of the wire is given by P.S.R + (H.S.C × L.C) ± Z.C where Z.C = Zero correction.
6. Repeat the experiment for different portions of the wire.
7. The average of these values gives the value of the diameter of the wire.
To measure the diameter of a thin wire using screw gauge, we need to follow the following steps:
1. Determine the Pitch, the Least Count and the Zero Error of the Screw Gauge.
2. Place the wire between the two studs.
3. Rotate the head until the wire is held firmly but not tightly, with the help of ratchet.
4. Note the reading on the pitch scale crossed by the head scale (P.S.R) and the head scale division that coincides with the pitch scale axis (H.S.C).
5. The diameter of the wire is given by P.S.R + (H.S.C × L.C) ± Z.C where Z.C = Zero correction.
6. Repeat the experiment for different portions of the wire.
7. The average of these values gives the value of the diameter of the wire.
