click below
click below
Normal Size Small Size show me how
Electricity
Question | Answer |
---|---|
circuit | a roughly circular line, route, or movement that starts and finishes at the same place |
conductor | a person who directs the performance of an orchestra or choir |
electric current | Electric current is a flow of electric charge through a conductive medium |
electric discharge | Electric discharge describes any flow of electric charge through a gas, liquid or solid |
electric field | An electric field is the region of space surrounding electrically charged particles and time-varying magnetic fields. |
electric force | To understand electric fields and electromagnetic waves, you need to know how charges (such as "negative" electrons and "positive" protons ) cause each other to move. |
electric power | Electric power is the rate at which electric energy is transferred by an electric circuit |
insulator | An electrical insulator is a material whose internal electric charges do not flow freely, and which therefore does not conduct an electric current, under the influence of an electric field |
ion | An ion is an atom or molecule in which the total number of electrons is not equal to the total number of protons, giving it a net positive or negative electrical charge. |
ohm's law | Ohm's law states that the current through a conductor between two points is directly proportional to the potential difference across the two points. |
parallel circuit | one connected completely in parallel is known as a parallel circuit. |
resistance | a measure of the degree to which an object opposes an electric current through it |
series circuit | A circuit composed solely of components connected in series is known as a series circuit |
static charge | tatic electricity is an excess of electric charge trapped on the surface of an object |
voltage | is the electric potential difference between two points — or the difference in electric potential energy of a unit test charge transported between two points |