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The magnetic field intensity at the cent...

The magnetic field intensity at the centre of a cubical cage of identical wires of length 'a' due to a current I flowing as shown in the figure is

A

`(2I)/a`

B

`(sqrt2I)/a`

C

0

D

`I//2a`

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Knowledge Check

  • The magnetic field intensity at the centre of a cubical case of identical wires of length 'a' due to A current I flowing as shown in the figure is

    A
    (2I/a)
    B
    `(sqrt2I)/(a)`
    C
    0
    D
    I/2a

  • Thevresulting magnetic field at the point O due to the current carrying wire shown in the figure

    A
    points out of the page
    B
    points into the page
    C
    is zero
    D
    is the same as due to segment WX along

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