What is meant by electric current? Name and define its SI unit. In a conductor electrons are flowing from B to A. What is the direction of conventional current? Give justification for your answer.
A steady current of 1 ampere flows through a conductor. Calculate the number of electrons that flows through any section of the conductor in 1 second. (Charge on electron 1.6 X 10-19 coulomb).
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Answer:
Ampere is SI unit of current. 1 ampere is defined as the current when 1 C of charge is passing through a conductor for 1 second. The direction of current is from A to B. It moves in the opposite direction to the flow of electrons, i.e current flows from positive terminal to negative terminal.
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