Current Electricity

conservation of charges

you cannot create or destroy charges

same

the total charge is always the…

move, change

Charges can …, but energy doesn’t …

battery

a device that stores chemical energy and converts it into electrical energy

resistance

a restriction to current flow.

resistor

A circuit device that is designed specifically to limit current flow.

electric current

the flow of negative charges (electrons negative charges flow from low to high potential)

electric circuit

• a source of energy

• a closed path

• a device which uses the energy

conventional current

the current is in the same direction as the flow of positive charge

kilowatt hour

The amount of energy consumed in 1 hour at a rate of 1 kW