<P> The far - field strength, B, of a dipole magnetic field is given by </P> <Dl> <Dd> B (m, r, λ) = μ 0 4 π m r 3 1 + 3 sin 2 ⁡ (λ), (\ displaystyle B (m, r, \ lambda) = (\ frac (\ mu _ (0)) (4 \ pi)) (\ frac (m) (r ^ (3))) (\ sqrt (1 + 3 \ sin ^ (2) (\ lambda))) \,,) </Dd> </Dl> <Dd> B (m, r, λ) = μ 0 4 π m r 3 1 + 3 sin 2 ⁡ (λ), (\ displaystyle B (m, r, \ lambda) = (\ frac (\ mu _ (0)) (4 \ pi)) (\ frac (m) (r ^ (3))) (\ sqrt (1 + 3 \ sin ^ (2) (\ lambda))) \,,) </Dd> <Dl> <Dd> B is the strength of the field, measured in teslas </Dd> <Dd> r is the distance from the center, measured in metres </Dd> <Dd> λ is the magnetic latitude (equal to 90 ° − θ) where θ is the magnetic colatitude, measured in radians or degrees from the dipole axis </Dd> <Dd> m is the dipole moment, measured in ampere - square metres or joules per tesla </Dd> <Dd> μ is the permeability of free space, measured in henries per metre . </Dd> </Dl>

Which molecule is an example of a common electric dipole