What is the maximum possible torque on the magnet due to the earth's field

Question

A small bar magnet has an effective magnetic moment μ = 1.65×10^1 A m^2. What is the maximum possible torque on the magnet due to the earth's field, B = 5.00×10^-5 T? (N*m)

Answer 1

Effective magnetic moment µ = 1.65×10^1 A m^{^2}
The maximum possible torque on the magnet due to the earth's field
τ = µ B
Where B =5.00×10^5 T
τ=1.65×10 ¹× 5.00×10 ^-5  = 8.25 x 10^{^-4} N m