Series/Parallel Circuits: In the circuit shown in the figure, the resistor R has a variable resistance. As R is decreased, what happens to the currents?
A. I1 remains unchanged and I2 increases.
B. I1 decreases and I2 decreases.
C. I1 decreases and I2 increases.
D. I1 increases and I2 decreases.
E. I1 increases and I2 increases.
Answer: C
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