Electromagnetic in a sentence

An inductor may radiate electromagnetic energy into surrounding space and circuits, and may absorb electromagnetic emissions from other circuits, causing electromagnetic interference (EMI).

Radio waves are a small part of a wider electromagnetic spectrum of waves, which all emit energy called electromagnetic radiation.

Radio waves are “non-ionizing radiation” (all electromagnetic waves are referred to as “radiation” in physics); because they occupy the bottom of the electromagnetic energy spectrum, they cannot affect the atoms and molecules in our cells.

As a result, electromagnetic laws in SI require an additional constant of proportionality (see Vacuum permittivity ) to relate electromagnetic units to kinematic units.

Dynamic magnetic fields may be a different issue, however; correlations between electromagnetic radiation and cancer rates have been postulated due to demographic correlations (see Electromagnetic radiation and health ).

Electromagnetic and gravitational fields Sources of electromagnetic fields consist of two types of charge – positive and negative.

Electromagnetic radiation Electromagnetic radiation is often described by its frequency—the number of oscillations of the perpendicular electric and magnetic fields per second—expressed in hertz.

Electromagnetic radiation includes the far field part of the electromagnetic field around a transmitter.

Electromagnetic separation main Electromagnetic isotope separation was developed by Lawrence at the University of California Radiation Laboratory.

Electrostatic and electromagnetic Both electrostatic and electromagnetic induction were used to develop wireless telegraph systems that saw limited commercial application.

EMC ensures the correct operation, in the same electromagnetic environment, of different equipment items which use or respond to electromagnetic phenomena, and the avoidance of any interference effects.

Hertz's proof of the existence of airborne electromagnetic waves led to an explosion of experimentation with this new form of electromagnetic radiation, which was called "Hertzian waves" until around 1910 when the term "radio waves" became current.

History of electromagnetic spectrum discoverymain seeAlso For most of history, visible light was the only known part of the electromagnetic spectrum.

Introduction While electromagnetic interference (EMI) is a phenomenon - the radiation emitted and its effects - electromagnetic compatibility (EMC) is an equipment characteristic or property - not to behave unacceptably in the EMI environment.

Physically one gets the normal electromagnetic wave solutions to the homogeneous part of the wave equation: : and the inhomogeneous term : acts as a driver/source of the electromagnetic waves.

Similarly, the intensity of electromagnetic forces depends upon the strength ( electric charge ) of the electromagnetic field.

Spread-spectrum clocking avoids this problem by using one of the methods previously described to reduce the peak radiated energy and, therefore, its electromagnetic emissions and so comply with electromagnetic compatibility (EMC) regulations.

The beam divergence of an electromagnetic beam is an angular measure of the increase in beam diameter or radius with distance from the optical aperture or antenna aperture from which the electromagnetic beam emerges.

The definition of electromagnetic momentum density is modified to : where the H-field H is related to the B-field and the magnetization M by : The electromagnetic stress tensor depends on the properties of the media.

The electromagnetic spectrum is the collective term for all known frequencies and their linked wavelengths of the known photons ( electromagnetic radiation ).