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Consider the magnetic field produced by ...

Consider the magnetic field produced by a finitely long current carrying wire .

A

The lines of field will be concentric circles with centres on the wire

B

There can be two points in the same plane where magnetic fields are same

C

There can be large number of points where the magnetic field is same

D

The magnetic field at a point is inversally proportional to the distance of the point from the wire

Text Solution

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The correct Answer is:
A, B, C
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Knowledge Check

  • The direction of magnetic field at a point due to an infinitely long wire carrying current is

    A
    parallel to the current
    B
    antiparallel to the current
    C
    along the perpendicular drawn from a point on the wire
    D
    perpendicular to the plane containing the conductor and the point

  • The strength of the magnetic field at a point r near a long straight current carrying wire is B . The field at a distance r/2 will be

    A
    `B/2`
    B
    `B/4`
    C
    `2B`
    D
    `4B`

  • The magnetic field lines inside a long current-carrying solenoid nearly

    A
    straight
    B
    circular
    C
    parabolic
    D
    elliptical

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    A horizontal cable carries a current from west to east. The direction of the magnetic field produced by the current at a point vertically above the wire is

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