Network Analysis

Tutorial on Basic Elements and Circuit Laws - Part 2

The formal solution for this problem looks like this:

Consider the loop shown in red, consisting only of the 25 W resistor and the 75 V battery. KVL solved around the red loop:
-V₂₅ + 75 = 0
V₂₅ = 75
I = V/R = 75/25 = 3A

Now let's add another voltage source to the circuit to create a new problem.

Find the current I.

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