explain currents flows throw a wire
with diagram
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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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The conventional direction of electric current is taken as opposed to the direction of flow of electrons. If a charge Q flows through the cross-section of a conductor in time t, the current I then I=Q/t. The current flows from the negative terminal to the positive terminal of the cell.
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