Estimates of the losses associated with electrons trapped in the ripples of a toroidal field of a T-10 tokamak showed that these losses may become appreciable after the electron temperature in this device is raised to 5-6 keV.¹ To determine the effect of these losses on the observable losses in T-10, in particular, the dependence т_Е ~P_u>t⁰⁶ for Ρ,ο,/Ροη = 3 10 P_tot/P_ECH + Рои [ (where Ρ он ^{is the} ohmic heating before switching on of the electron-cyclotron heating (ECH) ], it was necessary to accurately compare the results of the calculations with the measured T_e {r) profiles and the energy times r_E at various levels of rf power. In the first place, it was of interest to determine whether т_Е remains constant when the rf power is reduced to ~2P_OH. Such a test was shown to be possible in Ref. 1, and also in experiments with the electron-cyclotron heating in a T-7 tokamak,³ where it was shown that т_Ее/п_е remains constant under conditions of ohmic and auxiliary heating.