A steel needle can be magnetized by induction by exposing it to a strong magnetic field, typically created by a magnet. When the needle is brought close to the magnet, the magnetic field causes the domains within the steel to align in the direction of the field. This alignment of magnetic domains results in the needle becoming a magnet itself, with a north and south pole. Once removed from the magnetic field, the needle retains some of its magnetization due to the retention of the aligned domains, though it may not be as strong as when it was in the field.
A compass needle is a magnetized steel needle that aligns with the Earth's magnetic field. Its use allows for determining directions such as north, south, east, and west.
Answer:A compass needle can be made from any ferrous metal that can be magnetized.
The device you are describing sounds like a compass. The magnetized needle aligns with the magnetic field of the Earth, allowing users to determine their direction relative to the north.
By observing a compass needle.
It is still a needle, but could be referred to as a compass needle.
Since the needle in a compass is magnetized by induction it loses its magnetism easily by rough contact or heat.
A compass has a magnetized needle that can spin freely.
A compass has a magnetized needle that can spin freely.
When you sail with a magnetized needle, it will point towards the magnetic north pole. This is because the needle aligns itself with the Earth's magnetic field, which is used for navigation purposes.
a compass
A compass needle is a magnetized steel needle that aligns with the Earth's magnetic field. Its use allows for determining directions such as north, south, east, and west.
Answer:A compass needle can be made from any ferrous metal that can be magnetized.
The magnetic field of earth exerts a torque on the needle, pulling one end or pole of the needle toward the Earth's North magnetic pole, and the other toward the South magnetic. The needle is mounted on a low-friction pivot point, in better magnetized needle a jewel bearing, so it can turn easily. When the magnetized needle is held level, the needle turns until, after a few seconds to allow oscillations to die out, one end points toward the North magnetic pole.
The device you are describing sounds like a compass. The magnetized needle aligns with the magnetic field of the Earth, allowing users to determine their direction relative to the north.
The poles of a magnetized needle on a compass align themselves with the Earth's magnetic field, pointing towards the magnetic north and south poles. This alignment helps the needle to indicate the direction of north.
By observing a compass needle.
If a compass loses its magnetization, then it's no longer a compass; it's nothing but aneedle on a pivot, pointing in random directions.