A rular is not used to measure the thickness of a wire
Answers
Answer:
Vernier Caliper
A vernier caliper is a high-precision measurement tool that can be used in multiple types of measurements. It can measure thickness, diameter and even inside diameter for pipes. It consists of two jaws for thickness measurement, two smaller jaws for measuring inner diameters and a scaled handle. The lower thickness measuring jaw is connected to the lower smaller jaw, and there is also another scale on the whole piece. The ensemble slides on the handle of the vernier caliper when you open the jaws to make a measurement, and the combination resulting from the two scales gives the precise measurement. Vernier calipers have a reading error of 0.05 mm.
Micrometer
The micrometer is the most precise mechanical measurement tool. It consists of a thimble with a rotating screw in one end and a frame at the other end. Inside the thimble, a spindle moves with the rotation of the screw. The object to be measured is inserted into the frame, between the spindle and the anvil situated at the opposite end of the frame, and the screw is rotated until the object is fixed between the spindle and the anvil. There are two reading scales, one situated on the thimble, and another one on the body over which the thimble is rotated, called the barrel. Micrometers have a reading error of around 0.003 mm.
Explanation:
Answer:
Because of the incapability of a normal ruler
Explanation:
A ruler that we use in daily lives to measure cm and mm can't measure the thickness of a wire because in a usual ruler you can't measure length smaller than 1 mm correctly. Thickness of wire can be less than 1mm and because of that it's not used for measuring thickness.