For the circuit shown in the figure, 1 = 9V, 2 = 6V, 3 = 2V, r1 = 2, r2 = 1 = r3.

Determine:

a) The current in each resistor. If you will use a calculation tool to solve the equation system, include a photo to verify the data entry (Answer: I1 = 2A, I2 = 1A, I3 = 3A)

b) The powers dissipated/ generated by each element of the circuit. Indicate (by sign) if they dissipate or generate energy c) Make an energy balance to verify that the total power spent matches with the total power generated.