APFIVE Equivalent Resistance and Circuit Configuration
In a compound DC circuit, the equivalent resistance between points A and B is 24 Ω. When an additional 8 Ω resistor is connected in parallel between these points, the equivalent resistance becomes 6 Ω. What was the original circuit configuration?
A
One 24 Ω resistor
B
Four 6 Ω resistors in series
C
Three 72 Ω resistors in parallel
D
Two 12 Ω resistors in series
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