Define electric current

Electric current is a measure of the rate of flow of charges. What this means is how many charges are flowing in a circuit in a certain time period. Mathematically this is expressed as I=Q/t where I is for current measured in amps (A). Q is charge measured in Coulombs(C) and t is the time period measured in seconds.

LM

Related Physics GCSE answers

All answers ▸

In the early 20th Century the plum pudding model of the atom was replaced by the nuclear model of the atom, explain why this happened.


What's the difference between elastic and inelastic collisions ?


An electric Iron rated at 2600 W contains a steel plate, heated to a working temperature of 215°C. Room temp=18°C. Deduce whether the plate could reach its working temperature in less than 1 minute. Mass (steel plate)=890g & C (steel)=450J/kg/K


What is the difference between a transverse and longitudinal wave?