Magnetic fields lines are invisible but they fill the space around a magnet where the magnetic forces work on magnetic materials, and where they can attract or repel other magnets. Although we ...

It shows how iron filings reveal the magnetic field around a magnet, how charged objects create electric fields that can attract materials, and how gravity creates a gravitational field that pulls ...

Bar magnets and horseshoe magnets are two ... The needle of a compass is a small magnet that can turn. It turns around until its own magnetic field lines up with the Earth’s magnetic field.

How a Generator Works When an electric current flows through a wire, it generates a three-dimensional magnetic force field around the wire, similar to that surrounding a bar magnet. Magnets are ...

(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 ...

The magnetic field lines of a bar magnet can be viewed by using compasses or by ... Place compasses in position around the magnet or carefully shake iron filings onto the platform. Remove compasses or ...