The magnetic field lines are ____ near a straight current carrying wire.

Elliptical

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Circular

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Parabolic

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Straight

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Solution

The correct option is B Circular
The Magnetic field lines around a straight conductor carrying current are concentric circles whose centres lie on the wire. The direction of magnetic field lines can be determined using Right-Hand Thumb Rule.

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For a straight current-carrying wire, the magnetic field lines are ___.

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