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U3L1,2,3.SFI
Electricity and magnetism. 2-27-14
Term | Definition |
---|---|
electric charge | a fundamental property that leads to the electromagnetic interactions among particles that made up matter |
static charge | electric charges at rest; generally produced by friction or induction |
electrical conductor | a material in which charges can move freely |
electrical insulator | a material in which charges can not move freely |
semiconductor | an element or compound that conducts electric current better than an insulator does but not as well as a conductor does |
electric current | the rate at which electric charges pass a given point |
resistance | in physical science, the opposition presented to the current by a material or device |
voltage | the amount of work to move a unit electric charge between 2 points; expressed in volts |
electrical circuit | a set of electrical components connected such that they provide one or more complete paths for the movement of charges |
series circuit | a circuit in which the parts are joined one after another such that the current in each part is the same |
parallel circuit | a circuit in which the parts are joined in branches such that the voltage across each part is the same |