From Kirchhoff's junction law, the sum of current into a junction is equal to the sum of current out of the junction.
Current, i = V/R
Current through the first resistor:
i1 = 8/10 = 0.8 A
Current through the second resistor:
i2 = 8/15 = 0.533 A
What is the value of resistor R in the figure below?
a. 4.0 Ω
b. 12 Ω
c. 36 Ω
d. 72 Ω
e. 96 Ω
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