When there is an electric current through a conducting wire along its ...
Explanation:
When there is an electric current through a conducting wire along its length, the charges inside the wire start moving in a particular direction. This movement of charges results in the generation of an electric field around the wire.
The electric field around a wire carrying current is different in different regions around the wire. Let's discuss these regions in detail:
Region inside the wire:
Inside the wire, the charges are already present, and when a current flows through the wire, the charges move in the same direction. This results in the generation of an electric field inside the wire. The direction of the electric field inside the wire is parallel to the length of the wire. This is because the charges are moving in the same direction, and the electric field lines are always perpendicular to the direction of motion of the charges. Hence, the electric field inside the wire is parallel to the wire.
Region outside the wire:
Outside the wire, the electric field is perpendicular to the wire. This is because the charges inside the wire are moving in a particular direction, and they create a magnetic field around the wire. This magnetic field, in turn, generates an electric field outside the wire, which is perpendicular to the wire.
Conclusion:
Hence, it can be concluded that when there is an electric current through a conducting wire along its length, an electric field exists inside the wire, which is parallel to the wire.
When there is an electric current through a conducting wire along its ...
As current is flowing through it , it means charges are flowing along its length therefore heir must be some electric field parallel to the length of the wire. Hence correct option is B.
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