I did a physics lab and got some values. I want to check them theoretically to see how the results differ.  From this diagram, answer the following questions: The laws to be verified included the conservation of current in a node, the addition of potentials for components in series, and the addition of currents for components in parallel.  NOter that the second battery was connected in the opposite direction to the current, this is the aim of the question.  The data :  R1: 1094 ohm  R2 : 998 ohm  R3: 1094 ohm R4: 25 ohm  Source 1 : 5 V SOurce 2 : 1,5 V

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