Question

Explain the flow of current in a metallic wire on the basis of movement of electrons

Answer 1

here is your answer

when a wire is connected to the battery then potential differences is applied across the metallic wire,electrons inside due to acceleration start moving from the end at negative potential to at the end at positive potential .during which the speed of electrons increases but during their movement they collide with fixed positive and lose some of their kinetic energy due to which their speed decreases after the collision they are again accelerated towards the positive potential due to existing potential difference of their speed agaig.this process continues as result electrons do not move in a bulb with a continuously increasing speed but there is a drift of electrons towards the positive terminal

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