write a short note on electric currents in conductors class 12 physics
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An electric current is a flow of particles (electrons) flowing through wires and components. It is the rate of flow of charge. If the electric charge flows through a conductor, we say that there is an electric current in the conductor. In the circuits using metallic wires, electrons constitute a flow of charges.
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An electric current is the flow of electrons through a conductor.
Quantitatively, current (I) is defined as the charge passing through a conductor in unit time.
If charge Q is following through cross section of a conductor in time (t) .
current=I=Q/t
The current is expressed in Ampere (A).
1A=1c/1s.
I hope you understand this answer.
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