Chemical Effects Of Current

CHEMICAL EFFECTS OF ELECTRIC CURRENT


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CURRENT FLOW INSIDE A WIRE



       The reason of current flow in a metallic wire is the flow of free electrons present in it. When a metallic wire is not connected to a source of electricity the electrons present in it are free to move in all directions. As a result, there is no net flow of current in the wire.

metallic wire is not connected to a source of electricity, Electrons are at rest


       But, if the metallic wire is connected to a source of electricity, the electrons present in wire start to move from negative terminal to positive terminal. This flow of electrons in the wire from negative terminal to positive terminal is responsible for current flow inside a wire

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metallic wire connected to a source of electricity, the electrons present start to move from negative terminal to positive terminal



Test Your Understanding and Answer These Questions:




  1. How does current flow inside a wire?