Electromagnetic Energy Transfer. The higher the energy of the em wave the more dangerous it is. Radiation is the transfer of heat by electromagnetic waves.

Electromagnetic waves can transfer energy through matter or across empty space. 1 a straight wire conveying a current. It is mostly positive but can be negative.
In electromagnetic waves energy is transferred through vibrations of electric and magnetic fields.
Transfer energy from the source of the waves to an absorber. Applications of the law of transfer of energy. Transfer energy from the source of the waves to an absorber. Their vibrations or oscillations are changes in electrical and magnetic fields at right angles to the direction of wave travel.