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Question

What is meant by electric current? Name and define its S.I. unit

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Solution

Electric current (I) is defined as amount of charge (Q) flowing through a particular area of cross section in unit time (t).
It is represented as I = Q/t
S.I. unit of electric current is ampere (A).
One ampere is defined as one coulomb of charge flowing through a particular area of cross section of a conductor in one second, that is, 1 A = 1 C/1 s.

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