A long straight wire is held vertically and carries a steady current in upward direction…
Physics · Class 12 · CBSE — Moving Charges and Magnetism
A long straight wire is held vertically and carries a steady current in upward direction. The shape of magnetic field lines produced by the current-carrying wire are:
- horizontal straight lines directed radially out from the wire.
- straight lines parallel to the current-carrying wire.
- concentric horizonal circles around the wire.
- coaxial helixes around the wire.
Answer
(C) concentric horizonal circles around the wire.
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