Magnetic Effects Of Current Question 381
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:
Solution:
Answer: $ ( \sqrt{2} ) $
BETA
