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Plus Two Physics

Electric Current and flow of electrons

I have read that the FLOW OF ELECTRONS is called electricity. I wanna know that what is meant by flow of electrons? Pleaz answer me….

(Asked Kiruthika)

Answer:

Electric current is the flow of charges. (Measured as the rate of flow of charges).

In conductors electric current is caused by the flow of free electrons. When a potential difference is applied across a conductor, the electrons are accelerated towards the positive potential. (But, due to the presence of plenty of electrons, they cannot move with acceleration as they collide with each other during their motion.) There is a net drift of electrons across any cross section and a current is developed.

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