| |
El- Elastic Collisions
- When two bodies collide their total momentum is conserved unless external forces act on them.
- Elastic Limit
- The maximum load that a body can experience and still return to its original shape.
- Elasticity
- A material is elastic if it returns to it's original shape after being deformed.
- Elastomer
- A polymeric material that may experience large and reversible elastic deformations.
- Electric Charge
- A property used to explain attractions and repulsions between certain objects.
- Electric Constant
- e0 = 8.854187817x10-12Fm-1
- Electric Dipole Moment
- A measure of the degree of polarity of a polar molecule.
- Electric Motor Noise
- There are numerous applications of electric motors and the type of noise produced by each may be very specific to the installation and type of motor.
- Electric Motors
- There are a number of different types of electric motor: AC Induction Motors, Brush Direct Current Motors, Brushless Direct Current Motors and Stepper Motors.
- Electric Vehicle
- A vehicle with one or more electric motors for propulsion.
- Electrical Impedance
- Impedance of a linear circuit element with two terminals is the ratio of the complex sinusoidally varying voltage applied across the terminals to the complex current that flows in response.
- Electrical Length
- Physical length expressed in terms of the wavelength of a signal for the medium in which the component or structure is situated.
- Electrical Screen
- A metal shield which isolates a device from external fields.
- Electrochemistry
- The study of the interchange of chemical and electrical energy.
- Electrodes
- Device that moves electrons into or out of a solution by conduction.
- Electroform
- To form shaped objects by electro-deposition on a mould.
- Electrokinetic Potential
- Electric potential across all phase boundaries between solids and liquids, also known as the Zeta Potential.
- Electrolysis
- Changing the chemical structure of a compound using electrical energy.
- Electrolyte
- A substance that dissociates fully or partially into ions when dissolved in a solvent, producing a solution that conducts electricity.
- Electrolytic Capacitor
- A type of capacitor that has a liquid or paste between the plates to increase its capacitance.
- Electrolytic cell
- A cell that uses electrical energy to produce a chemical change that
would otherwise not occur spontaneously.
- Electromagnet
- A magnet formed by an inductor having current flow through it.
- Electromagnetic Compatibility
- The capability of different electrical systems to coexist in the electromagnetic environment without causing or being subjected to interference.
- Electromagnetic Field
- Electric and magnetic forces that exist in a physical volume.
- Electromagnetic Radiation
- The emanation of an electromagnetic field from a source through space.
- Electromotive Force
- The difference of potential produced by an electrical source to drive a current through an external electrical circuit.
- Electromotive Series
- The electrode potential of a material according to decreasing tendency to release electrons with hydrogen as zero.
- Electron
- The electron charge is 1.602x10-19 C
- Electron Affinity
- The measure of an atom′s tendency to gain an electron.
- Electron Beam Welding
- A technique for joining materials in which components to be welded are heated by a concentrated beam of high-velocity electrons in a vacuum.
- Electron Capture
- A decay process in which an inner atomic electron is captured by the nucleus.
- Electron Charge
- e = 1.602x10-19 C
- Electron Volt
- Unit of energy of moving particles. Given by the kinetic energy acquired by an electron losing one volt of potential.
- Electronegativity
- Measure of a substances' ability to attract electrons.
- Electronics
- Lists all the Electronics topics
- Electronics Books
- Lists all Electronics Books in the Encyclopaedia
- Electronics Calculations
- Lists all Electronics Calculations in the Encyclopaedia
- Electronics Conversions
- Lists all Electronics Conversions in the Encyclopaedia
- Electronics Weblinks
- Lists all Electronics Weblinks in the Encyclopaedia
- Electron-Positron Annihilation
- When an electron and its anti-particle, a positron, collide, they annihilate emitting a pair of gamma-ray photons each with an energy of 511 keV.
- Electrophile
- A species that loves electrons.
- Electropositive
- For an atom, having a tendency to release valence electrons.
- Electrostatic Sensitivity
- The degree to which a component or device is susceptible to damage by electrostatic discharge.
- Electroweak Interaction
- In the Standard Model, electromagnetic and weak interactions are related (unified).
- Electrum
- An alloy of 75% gold and 25% silver along with small quantities of other metals such as copper.
- Element
- A pure substance which cannot be broken down into simpler substances by chemical means.
- Elementary Charge
- The electric charge on an electron particle.
- Elementary Matrix
- A matrix that is obtained by performing an elementary row operation on an identity matrix.
- Elementary Particles
- The particles which form the building blocks of atoms and those which carry energy.
- Elevator
- Movable control surface, attached to the trailing edge of an aircraft tailplane to control pitching movements.
- Elevon
- Movable control surfaces which act collectively as elevators, but differentially as ailerons.
- ELF
- That portion of the radio frequency spectrum from 30 to 3000 hertz.
- Ellipse
- A plane through a right angle cone.
- Elliptical Orbit
- An orbit which describes an ellipse or oval shape.
- Elm
- A hard, durable and coarse grained wood. Used for ship building.
- Elongation
- Increase in length which occurs before a metal is fractured, when subjected to stress.
| |
