and where they can attract or repel other magnets. Although we cannot see magnetic field lines, we can detect them using iron filings. The tiny pieces of iron line up in a magnetic field.

Many people will remember experiments in school with iron filings and bar magnets to ... the details of the magnetic field. Just as they are on Earth, magnetic field lines are of crucial ...

Magnets are also surrounded by a similar three-dimensional field ... the lines of magnetic force surrounding the magnet. The simplest generator consists of just a coil of wire and a bar magnet.

The earth behaves as a huge bar magnet with its north pole ... The magnetic lines of force of Earth’s magnetic field are also closed loops originating from its magnetic north pole to go back ...

(b) neutral wire. (c) earth wire. 3. Draw magnetic field lines around a bar magnet. Name the device which is used to draw magnetic field lines. 4. Why does a compass needle get deflected when ...

If these metals have not been turned into a permanent magnet they will still be attracted to a magnet if placed within a magnetic field ... Magnetic fields lines are invisible but they fill ...