Question

why is a magnetic needle used in a compass​

Answer 1

Explanation:

heya..

This can be created by aligning an iron or steel rod with Earth's magnetic field and then tempering or striking it. magnetic needle is then placed on a low friction surface to allow it to freely pivot to align itself with the magnetic field

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Answer 2

A magnetic needle is used in compass as its magnetized needle exerts a torque which pulls the needle to point towards the Earth's North pole.