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Two resistors R1 = 36 Ω ± 5% and R2 = 75 Ω ± 5% are connected in series. The total resistance is

111 ± 0 Ω
111 ± 2.778 Ω
111 ± 5.55 Ω
111 ± 7.23 Ω

Correct Answer: 111 ± 5.55 Ω

Explanation:

Total maximum error ± (1.8 + 3.75) = ± 5.55 Ω.

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