There are invisible magnetic forces around a magnet. This is called a MAGNETIC FIELD. The forces are strongest around the ends, which are called the NORTH (N) ... |
The poles of a magnet are the places where the magnetic forces are strongest. When two magnets are brought close together they exert a force on each other. |
The magnetic field around an electromagnet is just the same as the one around a bar magnet. It can, however, be reversed by reversing the current (turning ... |
Help students to understand the principle of magnetism and electromagnetism with a range of engaging resources, videos, quizzes and classroom games. |
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