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JEE Main & Advanced Physics Magnetic Effects of Current / करंट का चुंबकीय प्रभाव Question Bank Numerical Value Type Questions - Moving Charges and Magnetism

The dipole moment of a circular loop carrying a current I, is m and the magnetic field at the centre of the loop is \[{{B}_{1}}\]. When the dipole moment is doubled by keeping the current constant, the magnetic field at the centre of the loop is \[{{B}_{2}}\]. The ratio \[\frac{{{B}_{1}}}{{{B}_{2}}}\] is:

Answer:

\[\left( \sqrt{2} \right)\]