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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > A uniform magnetic field B exists in the region between x = 0 and x = 3 R/2 (region 2 in the figure) pointing normally into the plane of the paper. A particle with charge +Q and momentum p directed along x-axis enters region 2 from region 1 at point P 1 (y =−R). Which of the following option(s) is/are correct?

A uniform magnetic field B exists in the region between x = 0 and x = 3 R/2 (region 2 in the figure) pointing normally into the plane of the paper. A particle with charge +Q and momentum p directed along x-axis enters region 2 from region 1 at point P 1 (y =−R). Which of the following option(s) is/are correct?

is m and the magnetic field at the centre of the loop is B1 . When the dipole moment is doubled by keeping the current constant The dipole moment of a circular loop carrying a current I the magnetic field at the centre of the loop is B2 . The ratio B1/B2 is: