It depends what you are talking about... Electromagnetic field Electromagnetic force Electromagnetic radiation Electromagnetic spectrum Electromagnetic therapy Electromagnetic waves ...they each have different meanings.
The electromagnetic spectrum spans from the lowly radio signals (1x104 Hz) that we use for terrestrial broadcasting to gamma rays (1x1021 Hz) from the sun! ===================
electromagnetic waves are from the spectrum
Electromagnetic waves are transferred by electromagnetic radiation.
Electromagnetic radiation is transferred by electromagnetic waves. Electromagnetic radiation is a fundamental phenomenon of electromagnetism.
Electromagnetic radiation E= hf is characterized by its frequency, f.
Electromagnetic radiation - or in other words light!
Light is ONE SMALL RANGE of the electromagnetic spectrum. In other words, electromagnetic waves within a relatively small range of frequencies - the frequencies that we are adapted to seeing with our eyes - is called "visible light", or simply "light".
the principle on which an electromagnetic crane works is electromagnetic induction
An electromagnetic wave.An electromagnetic wave.An electromagnetic wave.An electromagnetic wave.
the energy that makes the electromagnetic spectrum is electromagnetic radiation
Electromagnetic energy is transferred by electromagnetic waves.