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प्रश्न
What do you understand by the term current? State and define its S.I. unit.
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उत्तर
Current is the rate of flow of charge across a cross-section. It is a scalar quantity.
Its S.I. unit is ampere (coulomb per second).
If 1 ampere current flows through a conductor, it means that 6.25 x 1018 electrons pass in 1 second across that cross-section of conductor.
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संबंधित प्रश्न
What is the number of electrons that would flow per second through the cross-section of a wire when 1 A current flows in it?
0.7 C charges passes through a cross-section of a conductor in 7 s. Find the current.
State whether true or false. If false, correct the statement.
The anode in electrolyte is negative.
Problems for practice:
If 50 coulomb of electric charge flows through a wire in five minutes, calculate the current in the wire?
The movement of the positive charge is called ______.
