Electricity and Circuits (EdExcel)

what are conductors?

they are components that allow the charge to pass through them

what is current?

flow of charges

what is EMF?

the potential difference across battery

what is potential difference?

it is the work done in driving a charge

what is resistance?

it is the opposition to current

state ohm’s law

resistance is directly proportional to current when physical conditions e.g temperature are constant.

what is electrical power?

it is the rate of energy transfer

what is a diode?

a component that allows current to pass in one direction only.