Question

what causes electric resistance ? what is the physical significance of resistance?

i want correct ans. in 3 to 4 lines......plzz ans. quickly​

Answer 1

Electric resistance is causes due to thermal motion of electrons and due to collision of electrons with atoms. Electric resistance is smaller as the mechanical friction because electric resistance oppose the flow of current.

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Answer 2

hola !!!!!!

Electric resistance is causes due to thermal motion of electrons and due to collision of electrons with atoms. Electric resistance is smiler as the mechanical friction because electric resistance oppose the flow of current.