The current I ampere is flowing in an eq...

The current I ampere is flowing in an equilateral triangle of side a the magnetic field induction at the centroid will be

`(mu_(0)I)/(3sqrt(3)pia)`

`(3mu_(0)i)/(2pia)`

`(5sqrt(2)mu_(0)i)/(3pia)`

`(9mu_(0)i)/(2pia)`

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