# NEET Physics Moving Charges and Magnetism Questions Solved

A cell is connected between the points A and C of a circular conductor ABCD of centre O with angle AOC = $60°$ . If ${\mathrm{B}}_{1}$ and ${\mathrm{B}}_{2}$ are the magnitudes of the magnetic fields at O due to the currents in ABC and ADC respectively, the ratio $\frac{{\mathrm{B}}_{1}}{{\mathrm{B}}_{2}}$ is

(a) 0.2                             (c) 1

(b) 6                                (d) 5

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