Magnetic Compass
A magnet is a piece of iron, steel or steel alloy that was induced by a magnetic field. A magnet will attract similar metals. Some steel alloys have the quality to retain magnetism forever, thus forming permanent magnets. When a magnetized needle is suspended on a pivot, the North Magnetic Pole attracts one end of the needle while the other end is attracted to the South Magnetic Pole. A magnetic compass is an instrument that measures the direction relative to the magnetic north pole.
A magnet is a piece of iron, steel or steel alloy that was induced by a magnetic field. A magnet will attract similar metals. Some steel alloys have the quality to retain magnetism forever, thus forming permanent magnets. When a magnetized needle is suspended on a pivot, the North Magnetic Pole attracts one end of the needle while the other end is attracted to the South Magnetic Pole. A magnetic compass is an instrument that measures the direction relative to the magnetic north pole.
Magnetic Dip
At the magnetic equator, the attraction of the compass needle towards the north and south poles is equal and the needle remains unbiased. As the compass is moved either north or south of the magnetic equator, the attraction to the nearest pole is increased, thus the needle will be biased towards the nearest pole. This phenomenon is called magnetic dip.
At the magnetic equator, the attraction of the compass needle towards the north and south poles is equal and the needle remains unbiased. As the compass is moved either north or south of the magnetic equator, the attraction to the nearest pole is increased, thus the needle will be biased towards the nearest pole. This phenomenon is called magnetic dip.
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