Question

define magnetic compass needle

Answer 1

Explanation:

Magnetic compass, in navigation or surveying, an instrument for determining direction on the surface of Earth by means of a magnetic pointer that aligns itself with Earth's magnetic field. ... A magnetized needle stuck through a piece of cork makes a simple magnetic compass.

Answer 2

Explanation:

Magnetic compass, in navigation or surveying, an instrument for determining direction on the surface of Earth by means of a magnetic pointer that aligns itself with Earth’s magnetic field.

this are mostly used in aircraft, ships, and land vehicles and by surveyors.