Final answer:
The quantity B^2/μ0 has units of J/m^3.
Step-by-step explanation:
The quantity B2/μ0 has units of J/m3 (Option D).
In physics, B represents magnetic field strength, and μ0 is the permeability of free space. When B is squared and divided by μ0, the result has the units of energy per volume, or J/m3.
For example, if B is 2 T (tesla), and μ0 is 4π×10-7 Tm/A, then the quantity B2/μ0 is (22)/(4π×10-7) = 1.27×107 J/m3.