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Magnetic Field On Axis And Centre Of Ci...

Magnetic Field On Axis And Centre Of Circular Coil

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Revision |Magnetic field at an axial point of a circular coil|Field at the centre of the current arc

Knowledge Check

  • Magnetic field at the centre of a circular coil of radius R due to curent i flowing through it is B. The magnetic field at a point along the axis at distance R from the centre is :

    A
    `B/2`
    B
    `B/4`
    C
    `B/(sqrt(8))`
    D
    `sqrt(8)B`

  • The magnetic field at the centre of a circular coil carrying current I ampere is B. It the coil is bent into smaller circular coil of n turns then its magnetic field at the centre is B, the ratio between B' and B is

    A
    `1:1`
    B
    `n:1`
    C
    `n^(2):1`
    D
    `(n+1):1`

  • The ratio of the magnetic field at the centre of a current carrying circular wire and the magnetic field at the centre of a semi-circular coil made from the same length of wire will be

    A
    `2 : 1`
    B
    `4 : 1`
    C
    `1 : 2`
    D
    `1 : 4`

    • Similar Questions

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    A current I produces a magnetic field B at the centre of the circular coil. If the coil rewound to double its number of turns then what is the magnetic field at its centre in terms of B?

    Find the magnetic field induction at a point on the axis of a circular coil carrying current and hence find the magnetic field at the centre of circular coil carrying current.

    If current through a circular coil flows in clockwise direction, then the direction of magnetic field at the centre of the circular coil is………………to the plane of the coil, directed……………. .

    Plot a magnetic field due to a circular coil carrying current and explain the law used to find the direction of magnetic field at the centre of circular coil carrying current.

    How does the strength of the magnetic field at the centre of a circular coil of a wire depend on: (a) radius of the coil (b) number of turns in the coil.

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