What is measured to verify the number of twists per inch in a twisted wire?

To verify the number of twists per inch in a twisted wire, it is essential to measure the length of the end of the twisted wire to the hole. This measurement is directly related to how tightly and frequently the wire is twisted within a given length, which allows for the determination of twists per inch. This method ensures accuracy because it accounts for the specific section of the wire in question, reflecting the actual twisting density and confirming compliance with required specifications.

Other measurements, like the total length of the wire or the diameter of the wire, do not provide insights into the twisting itself. The distance between each twist may hint at the twist density but does not provide a clear measurement of twists per inch. By focusing on the specific length of the twisted section, one ensures that the measurement is both relevant and precise for verifying twisting standards.