negative magnetic pole
Definition
Noun: 1. The south-seeking pole of a magnet: The pole of a magnet that, when the magnet is suspended freely and can rotate, will orient itself toward the Earth's geographic south (which is its magnetic north). It is the pole where magnetic field lines enter the magnet.
Usage
This term is used in the context of physics and magnetism to specify one of the two poles of a permanent magnet or an electromagnet. It describes a fundamental property based on the magnet's interaction with the Earth's magnetic field.
Examples
- In a simple bar magnet, the negative magnetic pole is traditionally painted a different color for identification.
- When a compass needle is allowed to rotate freely, its negative magnetic pole points toward the Earth's geographic south.
- The experiment demonstrated that like poles repel; the negative magnetic pole of one magnet repelled the negative pole of the other.
Advanced Usage
- In technical specifications, the negative magnetic pole is often labeled as the "S-pole" or "south pole" of the magnet.
- The concept is crucial for understanding magnetic field lines: they emerge from the positive (north) pole and re-enter at the negative magnetic pole.
Variants and Related Words
- South pole (of a magnet): A common synonym.
- S-pole: An abbreviated technical term.
- Positive magnetic pole (north-seeking pole): The opposite pole of a magnet.
Synonyms
- South-seeking pole
- Magnetic south pole
Antonyms
- Positive magnetic pole
- North magnetic pole
- North-seeking pole
Noun
-
the pole of a magnet that points toward the south when the magnet is suspended freely
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