Question

Describe in the brief the construction
of a compass medle state its main
use.
at
manatic needle​

Answer 1

Answer:

Magnetic Needle*

Spell Correctly

Answer 2

Answer:

A magnetic rod is required when constructing a compass. ... For example, a magnetised rod can be created by repeatedly rubbing an iron rod with a magnetic lodestone. This magnetised rod (or magnetic needle) is then placed on a low friction surface to allow it to freely pivot to align itself with the magnetic field.