Magnetic energy spectra e_M(k) compensated by the Kazantsev scaling k^3/2 and normalized by their compensated maximum for (a) models N128, (b) N256, and (c) N512 using different values of the magnetic diffusivity η in kpc km s⁻¹ as listed in the legends. Insets zoom in near the start of the inertial range to highlight deviations from the curve for η = 0. In panel (d), the wavenumber k_η at the dissipation scale, normalized by ﹩{k}_{{\eta }_{0}}={k}_{\eta }(\eta =0)﹩, is plotted against η. The dissipation scale is resolved, defining η_crit, for values of η where ﹩{k}_{\eta }/{k}_{{\eta }_{0}}\lt 1﹩.