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What is the magnetic field |vec(B)| at t...

What is the magnetic field `|vec(B)|` at the point P due to a current carrying wire of length AB (having a current of 2A) shown in figure ?

A

`2mu T`

B

`25 muT`

C

`2.5 nT`

D

`30 nT`

Text Solution

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The correct Answer is:
D
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Knowledge Check

  • The magnetic field at a point P due to a current carrying coil as shown in figure is

    A
    `(mu_(0))/(4pi) (1)/(a^(2))`
    B
    `(mu_(0))/(4pi) (lax)/((x^(2)-a^(2))^(2))`
    C
    `(mu_(0))/(4pi) (2pila^(2))/(x^(2))`
    D
    `(mu_(0))/(4pi) (2pila^(2))/((x^(2)+a^(2))^(3"/"2))`

  • The resulting 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 the segment WX along.

  • The magnetic field due to current carrying circular coil having n turns is

    A
    `n^(2)` times as large as that produced by a single turn
    B
    n times as large as that produced by a single turn
    C
    `(1)/(2)` -times as large as that produced by a single turn
    D
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