Magnetic field at the center of a square loop to magnetic field at the centre of circle
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if same length of both wire is used then use relation 2πr=4(2a) to find relation between a and r
sorry but for sq loop magnet feild multiply b1 by 4, (I forgot that)
because there are 4 straigh wire
sorry but for sq loop magnet feild multiply b1 by 4, (I forgot that)
because there are 4 straigh wire
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