In a balanced Wheatstone bridge with resistors 5 Ω, 10 Ω, 8 Ω, and Rx, the unknown resistance Rx is:
Correct answer: C. 16Ω
- A. 4Ω
- B. 8Ω
- C. 16Ω
- D. 20Ω
Explanation
For a balanced Wheatstone bridge, R₁/R₂ = R₃/Rₓ. Using 5/10 = 8/Rₓ, we get Rₓ = 8 × 10/5 = 16 Ω.
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