alleryIn a Wheatstone bridge: P = 4Ω, Q = 8Ω, R = 6Ω. For balance, S =
A6 Ω
B3 Ω
C8 Ω
D12 Ω
Answer & Solution
Correct answer: D. 12 Ω
Balance: P/Q = R/S → 4/8 = 6/S → S = 6 × 8/4 = 12 Ω.
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