dielectric materials
31Capacitor — This article is about the electronic component. For the physical phenomenon, see capacitance. For an overview of various kinds of capacitors, see types of capacitor. Capacitor Modern capacitors, by a cm ruler Type Passive …
32Refractive index — Refraction of light at the interface between two media. In optics the refractive index or index of refraction of a substance or medium is a measure of the speed of light in that medium. It is expressed as a ratio of the speed of light in vacuum… …
33Relative permittivity — Relative static permittivities of some materials at room temperature under 1 kHz[1] Material εr Vacuum 1 (by definition) Air 1.00058986 ± 0.00000050 (at STP, for 0.9 MH …
34Low-K — In semiconductor manufacturing, a Low κ dielectric is a material with a small dielectric constant relative to silicon dioxide. Although the proper symbol for the dielectric constant is the Greek letter κ (kappa), in conversation such materials… …
35Level sensor — Level sensors are used to detect liquid level. The liquid to be measured can be inside a container or can be in its natural form (e.g. a river or a lake). The level measurement can be either continuous or point values. Continuous level sensors… …
36Microwave oven — A modern microwave oven …
37Electret — (formed of elektr from electricity and et from magnet ) is a dielectric material that has a quasi permanent electric charge or dipole polarisation. An electret generates internal and external electric fields, and is the electrostatic equivalent… …
38Metamaterial — Negative index metamaterial array configuration, which was constructed of copper split ring resonators and wires mounted on interlocking sheets of fiberglass circuit board. The total array consists of 3 by 20×20 unit cells with overall dimensions …
39Insulator (electrical) — Ceramic insulator at railways Conducting copper wire insulate …
40Maxwell's equations — For thermodynamic relations, see Maxwell relations. Electromagnetism …
