Magnetic Field Due to a Straight Current Carrying Conductor
The magnetic ...
Question
The magnetic field near a long straight wire is given by
A
straight field lines perpendicular to the wire.
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B
straight field lines parallel to the wire.
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C
concentric circles centered on the wire.
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D
radial field lines starting from the wire.
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Solution
The correct option is C concentric circles centered on the wire.
Magnetic field lines near a straight conductor are concentric circles centered at the conductor. The direction of magnetic field lines can be found using right hand thumb rule.