What is the magnitude of the equatorial and axial fields due to a bar magnet of length $5.0 \; cm$ at a distance of $50 \; cm$ from its mid-point? The magnetic moment of the bar magnet is $0.40 \; A m^{2}$.

• A
  $B_{E} = 3.2 \times 10^{-7} \; T, B_{A} = 6.4 \times 10^{-7} \; T$
• B
  $B_{E} = 6.4 \times 10^{-7} \; T, B_{A} = 3.2 \times 10^{-7} \; T$
• C
  $B_{E} = 1.6 \times 10^{-7} \; T, B_{A} = 3.2 \times 10^{-7} \; T$
• D
  $B_{E} = 3.2 \times 10^{-7} \; T, B_{A} = 1.6 \times 10^{-7} \; T$