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Series-Parallel Circuits
What is the total resistance of a circuit when R1 (7 k Ω) is in series with a parallel combination of R2 (20 k Ω), R3 (36 k Ω), and R4 (45 k Ω)?
4 k Ω
17 k Ω
41 k Ω
108 k Ω
Correct Answer:
17 k Ω
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