Essays Tagged: "current electric"
Resistance of Wire
uch the resistance changes due to the increase of the length of the wire (constant wire).Electrical CurrentElectric current is the rate of charge flow past a given point in all electric circuit, measu ... nds, which is named amperes. In most DC electric circuits, it can be assumed that the resistance to current flow is constant so that the current in the circuit is related to voltage and resistance by ...
Subjects: Science Essays > Physics
Physics Basic Revision Notes - All Resumed
up a charge in the cloud and this charge can jump between clouds or the Earth as lightning.Electric currentElectric current is a flow of electrons along a conductor like a metal wire. Electrons come f ... electric cell gives the electrons energy. Break the circuit and the electrons cannot flow.Electric current is not used up because electrons are not destroyed they transfer energy as they move round t ...
Subjects: Science Essays > Physics