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A current of 1.0 ampere is flowing in th...

A current of 1.0 ampere is flowing in the sides of an equilateral triangle of side `4.5 xx 10^(-2)` m. Find the magnetic field at the centroid of the triangle. (Permeability constant `mu_(0) = 4pi xx 10^(-7) V-s//A-m`)

A

`4.0 xx 10^(-5) "weber"//m^(2)`

B

`6.0 xx 10^(-8) "weber"//m^(2)`

C

`2.0 xx 10^(-5) "weber"//m^(2)`

D

`7.0 xx 10^(-12) "weber"//m^(2)`

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Knowledge Check

  • A current of 2A is flowing in the sides of an equilateral triangle of side 9 cm. The magnetic field at the centroid of the triangle is

    A
    `1.66xx10^(-6)T`
    B
    `1.22xx10^(-4)T`
    C
    `1.33xx10^(-6)T`
    D
    `1.44xx10^(-4)T`

  • The side of an equilateral triangle is 10 cm. Find its area (in cm^(2) ).

    A
    `25 sqrt3`
    B
    `36 sqrt 3 `
    C
    `25 sqrt2`
    D
    `36 sqrt2`

  • The side of an equilateral triangle is 10 cm. Find its area (in cm^(2) ).

    A
    `25sqrt(3)`
    B
    `36sqrt(3)`
    C
    `25sqrt(2)`
    D
    `36sqrt(2)`

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