In a problem with three closed loops, we track the loops in a clockwise direction and obtain the following information:

for Loop 1: - 40 V - 60 V + 100 V = 0
for Loop 2: - 10 V - 30 V - 60 V + 100 V = 0
for Loop 3: - 40 V - 60 V + 60 V + 30 V + 10 V = 0
This confirms ____.
a. Ohm’s law
b. the existence of nodes
c. Kirchhoff’s voltage law
d. a single parallel circuit


c. Kirchhoff’s voltage law

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