The magnetic field at the centre of an equilateral triangular loop of side 2L and carrying a current i is :\[\frac{9\mu_{0}i}{4\pi L}\]\[\frac{3\sqrt{3}\mu_{0}i}{4\pi L}\]\[\frac{2\sqrt{3}\mu_{0}i}{\pi L}\]\[\frac{3\mu_{0}i}{4\pi L}\]No solution provided for this question.
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