Effect of the magnetic field strength on the equilibrium solution when exploring weaker and stronger scenarios compared to the optimal field. Various constant mid-plane β-plasma parameters, β_mid, were considered such that β_mid ∈{10, 10², 10³, 10⁴, 10⁵}. The "optimal" case (green) corresponds to the field strength used for the fiducial model, namely, the field strength that is required for the MRI activity to be at the maximal efficiency as permitted by Ohmic resistivity and ambipolar diffusion. The panels show the various steady-state profiles of some key quantities, for the model parameters M_⋆ = 1 M_⊙, L_⋆ = 2 L_⊙, M_disk= 0.05 M_⋆, a_dust = 1 μm, f_dg = 10⁻², and α_hydro = 10⁻⁴. Panels (a), (b), (c), (e), and (f) show the same key quantities as in Fig. 7. Panel (d): Mid-plane r.m.s. magnetic field strengths corresponding to the various β_mid as well as the optimal r.m.s. magnetic field strength (green).