Term
|
Definition
| device to measure electrical current |
|
|
Term
|
Definition
| unit of electric current; one ampere is the flow of one coulomb of charge per second |
|
|
Term
|
Definition
| device that converts chemical to electrical energy consisting of two dissimilar conductors and an electrolyte |
|
|
Term
|
Definition
| electrical device used to store charge and energy in the electrical field |
|
|
Term
|
Definition
| object that has an unbalance of positive and negative electrical charges |
|
|
Term
|
Definition
| process of charging by touching neutral object to a charged object |
|
|
Term
|
Definition
| process of charging by bringing neutral object near charged object, then removing part of resulting separated charge |
|
|
Term
|
Definition
| unit of electrical charge. Charge caused by flow of one ampere for one second |
|
|
Term
|
Definition
| electrical device permitting only one way current flow |
|
|
Term
|
Definition
| small quantities of material added to semiconductor to increase electrical conduction |
|
|
Term
|
Definition
| device, often a battery or generator, that increases potential of electrical charge |
|
|
Term
|
Definition
| continuous path through which electrical charges can flow |
|
|
Term
|
Definition
| flow of charged particles |
|
|
Term
|
Definition
| property of space around a charged object that causes forces on other charged objects |
|
|
Term
|
Definition
| ratio of electric potential energy to charge |
|
|
Term
| Electric potential difference |
|
Definition
| difference in electric potential between two points |
|
|
Term
| Electric potential energy |
|
Definition
| energy of a charged body in an electrical field |
|
|
Term
|
Definition
| metal safety device in an electric circuit that melts to stop current flow when current is too large |
|
|
Term
|
Definition
| device used to measure very small currents |
|
|
Term
|
Definition
| process of connecting a charged object to Earth to remove object's unbalanced charge |
|
|
Term
|
Definition
| material through which the flow of electrical charge carriers or heat is greatly reduced |
|
|
Term
|
Definition
| SI unit of resistance, one volt per ampere |
|
|
Term
|
Definition
| resistance of object is constant, independent of voltage across it |
|
|
Term
|
Definition
| circuit in which there are two or more paths for current flow |
|
|
Term
|
Definition
| connection of two or more electrical devices between two points to provide more than one current path |
|
|
Term
|
Definition
| device that converts electromagnetic radiation into electrical energy |
|
|
Term
|
Definition
| electric potential produced by deforming material |
|
|
Term
|
Definition
| difference in electric potential between two points |
|
|
Term
|
Definition
| electrical device with variable resistance; rheostat |
|
|
Term
|
Definition
| ratio of potential difference across device to current through it |
|
|
Term
|
Definition
| representation of electric circuit using symbols |
|
|
Term
|
Definition
| material in which electrical conduction is smaller than that in a conductor, but more than in an insulator |
|
|
Term
|
Definition
| circuit in which electrical current flows through each component, one after another |
|
|
Term
|
Definition
| low resistance connection between two points, often accidental |
|
|
Term
|
Definition
| transformer with output voltage smaller than input voltage |
|
|
Term
|
Definition
| transformer with output voltage larger than input voltage |
|
|
Term
|
Definition
| electrical conductor that has no resistance and low temperatures |
|
|
Term
|
Definition
| charge used, in principle, to measure electric field |
|
|
Term
|
Definition
| device used to transform energy from one electrical circuit to another by means of mutual inductance between two coils |
|
|
Term
|
Definition
| semiconductor device that controls large current by means of small voltage changes |
|
|
Term
|
Definition
| device that uses an electric current to produce a concentrated magnetic field |
|
|
Term
|
Definition
| one of the fundamental forces due to electric charges, both static and moving |
|
|
Term
| Electromagnetic induction |
|
Definition
| production of electric field or current due to change in magnetic flux |
|
|
Term
|
Definition
| wave consisting of oscillation electric and magnetic fields that move at the speed of light through space |
|
|
Term
|
Definition
| potential difference produced by electromagnetic induction |
|
|
Term
|
Definition
| material in which large internal magnetic fields are generated by cooperative action of electrons |
|
|
Term
|
Definition
| naturally occurring magnetic rock |
|
|
Term
|
Definition
| space around a magnet throughout which magnetic force exists |
|
|
Term
|
Definition
| used to find force on current or moving particle in magnetic field; used to fine direction of magnetic field caused by current or of induced EMF |
|
|
Term
|
Definition
| lines representing the direction of electric field |
|
|
Term
|
Definition
| arrangement of electrical devices so that there is only one path through which current can flow |
|
|
Term
| Electromagnetic radiation |
|
Definition
| energy carried by electromagnetic waves throughout space |
|
|
