Increasing the number of turns on the coil of wire The image below illustrates a simple experiment to demonstrate electromagnetic induction. The direction of a motor effect force can be found ...

Electromagnetic waves of different frequency are called by different names since they have different sources and effects on matter. In order of increasing frequency and decreasing wavelength these are ...

Hot bodies emit a continuous range of electromagnetic radiation at different energy values – this means that the radiation that is emitted is spread out over a range of different frequencies and ...

THE electromagnetic spectrum includes radiation over a wide range of energies and a variety of categories, many of which one senses or uses every day. These include microwaves, television and ...

For the first time, scientists have confirmed a 50-year-old theory about wave amplification using electromagnetic waves.