Electrical Quantities, Voltage & Power Flashcards
What is electric current?
An electric current is produced when electrons move in one direction only.
What is the unit of measurement for Current?
Ampere ( A ) and the symbol is I.
Name two types of current flow?
Conventional and Electron Flow.
What is conventional current flow?
flows from positive to negative.
What is electron flow?
flows from negative to positive.
What is electrical charge?
it is the basic properties of the elementary particles of matter giving rise to all electric and magnetic interactions.
What is the unit of measurement for electric charge?
Coulombs ( C ) and the symbol is Q.
What is voltage?
Voltage is the force which pushes the electrons..
What is the unit of measurement for voltage?
Volts ( V ) and the symbol is V.
What is Power?
electric power is the rate at which electric energy is transferred by an electric circuit.
What is the unit of measurement for electric power?
Watts ( W ) and the symbol is P.
What can electric charges do?
Electric charges can exert pressure on each other, that is, like charges repel and unlike charges attract.
