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प्रश्न
What do you understand by the term current? State and define its S.I. unit.
टीपा लिहा
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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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Direction of the Electric Current - Conventional and Electronic Flow
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संबंधित प्रश्न
Distinguish between D.C. and A.C.
How many kinds of charges have you come across?
Name the physical quantity which defines the rate of flow of charge.
Name the instrument used to measure the magnitude of the current flowing in the circuit.
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Define the electrical resistance of a metal. Write its SI unit.
How is a voltameter different from a voltmeter?
The direction of conventional current is ______ to electron flow.
milli ampere: micro ampere : : 10-3A : ______.
Problems for practice:
If 50 coulomb of electric charge flows through a wire in five minutes, calculate the current in the wire?
