# What is the potential difference across the 10 Ohm resistor in the figure?

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a. What is the potential difference across the 10 ohm resistor in the figure?

b. What is the potential diffrence across the 20 ohm resistor in the figure?

V_{10}=\frac{10}{10+20} * 15=5 V
V_{20}=\frac{20}{10+20} * 15=10 \mathrm{~V}