find the magnitude and direction in a semicircle of radius 0.5cm carrying a current of 2A which placed in a uniform magnetic field of 0.3T
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At the centre of the circular loop, The magnetic field lines are straight. Each segment of circular loop carrying current produces magnetic field lines in the same direction with in the loop. The direction of magnetic field at the centre of circular coil is perpendicular to the place of the coil.
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