The magnetic field due to a small magnetic dipole of magnetic moment M at distance r from the centre on the equatorial line is given by (in M.K.S. system)

Question

The magnetic field due to a small magnetic dipole of magnetic moment M at distance r from the centre on the equatorial line is given by (in M.K.S. system) (A) (μ0/4 π) × (M/r2) (B) (μ0/4 π) × (M/r3) (C) (μ0/4 π) × (2 M/r2) (D) (μ0/4 π) × (2 M/r3)

Tardigrade Admin · Accepted Answer

B text equatorial =(μ0/4 π) (M/r3)

Q. The magnetic field due to a small magnetic dipole of magnetic moment $M$ at distance $r$ from the centre on the equatorial line is given by (in M.K.S. system)

$\frac{μ _{0}}{4 π} \times \frac{M}{r ^{2}}$

$\frac{μ _{0}}{4 π} \times \frac{M}{r ^{3}}$

$\frac{μ _{0}}{4 π} \times \frac{2 M}{r ^{2}}$

$\frac{μ _{0}}{4 π} \times \frac{2 M}{r ^{3}}$

$B_{equatorial} = \frac{μ _{0}}{4 π} \frac{M}{r ^{3}}$

Q. The magnetic field due to a small magnetic dipole of magnetic moment M at distance r from the centre on the equatorial line is given by (in M.K.S. system)

4πμ0​​×r2M​

4πμ0​​×r3M​

4πμ0​​×r22M​

4πμ0​​×r32M​