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The field due to a long straight wire ca...

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`

Text Solution

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The correct Answer is:
A
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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 magnetic field lines due to a straight wire carrying a current are

    A
    straight
    B
    circular
    C
    parabolic
    D
    elliptical

  • The magnetic induction at any point due to a long straight wire carrying a current is

    A
    Proportional to the distance from the wire
    B
    Inversely proportional to the distance from wire
    C
    Inversely proportional to the square of the distance from the wire
    D
    Does not depend on distance

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