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An equilateral triangle of side 10cm car...

An equilateral triangle of side 10cm carries a current of 3A. Find the magnetic field at centroid of triangle.

A

`1.2 x 10^-5 T`

B

`3.6 x 10^-5 T`

C

`2.4 x 10^-5 T`

D

`5.4 x 10^-5 T`

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Knowledge Check

  • A current of 10A is flowing in a equilateral triangle of side length l=1M as shown in figure. The magnetic field at center of triangle is:

    A
    `8xx10^(-6)T`
    B
    `9xx10^(-5)T`
    C
    `9xx10^(-6)T`
    D
    `10^(-5)T`

  • 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`

  • Consider three charges q, - q, (in Sl units) at the vetrices of an equilateral triangle with side length b. The magnitude of electric field at the centroid of the triangle is :

    A
    `(3q)/(2pi epsilon_(0)b^(2))`
    B
    `(3q)/(4pi epsilon_(90)b^(2))`
    C
    `(q)/(2pi epsilon_(0)b^(2))`
    D
    0

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