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Given that, R1 = 36 Ω and R2 = 75 Ω, each having tolerance of ±5% are connected in series. The value of resultant resistance is ___________(a) 111 ± 0 Ω(b) 111 ± 2.77 Ω(c) 111 ± 5.55 Ω(d) 111 ± 7.23 ΩI had been asked this question in examination.The doubt is from Advanced Problems on Network Theorems topic in section Useful Theorems in Circuit Analysis of Network Theory |
Answer» RIGHT choice is (c) 111 ± 5.55 Ω Best explanation: R1 = 36 ± 5% = 36 ± 1.8 Ω R2 = 75 ± 5% = 75 ± 3.75 Ω ∴ R1 + R2 = 111 ± 5.55 Ω. |
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