CBSE Class 10 Science 2019 · Paper 31/4/2 · Question 1
Define current. Give its S.I. unit.
Answer
Electric current is the rate of flow of charge, ; its S.I. unit is the ampere (A).
Electric current is the rate of flow of electric charge through a conductor, that is, the charge flowing through any cross-section of the conductor per unit time: .
Its S.I. unit is the ampere (A), where (one coulomb per second).
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