The subsequent problems deal with the circuit below where:R1=5k?, R2=10k?, R3=5k?, R4=10k?, R5=10k?, V1=5V, and V2=10V.
What is the equivalent resistance seen by the series voltage supplies?
A. 15 k?
B. 10 k?
C. 20 k?
D. 6 k?
E. 8 k?
Answer: D
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