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The magnitude of magnetic field at a poi...

The magnitude of magnetic field at a point having perpendicular distance 50 mm from a long straight conducting wire carrying a current of 3A is

A

0.12 G

B

1.2 G

C

12 G

D

0.012 G

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Knowledge Check

  • A field due to a long straight wire carrying a current I is proportional to

    A
    l
    B
    `l^(2)`
    C
    `l^(3)`
    D
    `sqrtl`

  • The field due to a long straight wire carrying a current I is proportional to

    A
    `l`
    B
    `I^(3)`
    C
    `sqrt(I)`
    D
    `1/I`

  • The field due to a long straight wire carrying a current I is proportional to

    A
    I
    B
    `sqrt(I)`
    C
    `I^2`
    D
    `1//I`

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