2. Calculate the currents in all circuit branches by applying loop current method. 3. Calculate the currents in all circuit branches by applying nodal analysis. 4. Make a power balance equation. R, 50 Ohm R2, 60 Ohm R3, 40 Ohm R4, 20 Ohm R5, 30 Ohm R6, 20 Ohm Е1, 0 V Е2, 100 V Е3, 0 V Е4, 200 V Е5, 0 V Е6, 150 V IК, 3,5 А