magnetism1

magnetism1 - Magnets Magnet; an object that Attract certain...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
1 Magnets Magnet; an object that Attract certain types of material, like iron. Attract or repel another magnet. All magnets have two poles, named the “north pole” and the “south pole”. The reason for the poles are called north or south is because the Earth is a gigantic magnet with its magnetic south pole is close to its geographic north pole, and its magnetic north pole is close to its geographic south pole. When a magnet is let to move freely, it will align itself with its north pole pointing to the north. This is how a magnetic compass works. A magnetic monopole has never been found. It is proposed by Paul Dirac in 1931 to explain electron charge quantization. Searching for magnetic monopole is active and in the frontier of physics research.
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
2 Magnetic fields Magnetic field is introduced to explain the fact that magnetic forces act over distance. Magnetic field lines illustrate the magnetic field. Outside the magnet, the field lines
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 05/06/2008 for the course PHYS 1304 taught by Professor Ye during the Spring '08 term at SMU.

Page1 / 12

magnetism1 - Magnets Magnet; an object that Attract certain...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online