as for my knowledge,i have read that FLOW OF ELECTRONS is called electricity.i wanna actually know WAT IS MEANT BY FLOW OF ELECTRONS?

current.....................

Hello,

let me clear u that FLOW OF ELECTRONS  is called current . The actual meaning of flow of electrons  is passing the electrons or moving the electrons at definite place and in definite pattern or path. this is depend on fields that we provide  and that is neccessary for flowing the current. and at end we say that flowing of current is called electricity. 

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IN materials...such as conductors...basically electrons are present on the surface of the conducting materials...and when a potential difference is applied...a force acts on these electrons..which drives it through the higher potential...and this induces electricity!!! i hope this helps u...;) 

basically when two objects come in contact, flow of electrons taes place, like during friction or charging by induction etc...to maintain electrical neutrality

Basically, when a sufficient potential difference is given across a conductor wire then ,, what happenes is given in this figure.