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प्रश्न
What is the function of a key in an electric current?
एका वाक्यात उत्तर
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उत्तर
A key is used to put the current on and off in the circuit.
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Direction of the Electric Current - Conventional and Electronic Flow
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संबंधित प्रश्न
What do you understand by the term current? State and define its S.I. unit.
Figure. below shows two conductors A and B. Their charges and potentials are given in diagram. State the direction of (i) flow of electrons and (ii) flow of current, when both the conductors are joined by a metal wire.
What do you mean by electrostatics?
What is the other name of frictional electricity?
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?
Name the instrument used to measure the magnitude of the current flowing in the circuit.
Define the electrical resistance of a metal. Write its SI unit.
How is a voltameter different from a voltmeter?
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?
