1.

The resistance of two resistance wires are R1 = (100 ± 5)Ω and R2 = (200 ± 7)Ω are connected in series. Find the maximum absolute error in the equivalent resistance of the combination.(a) 35Ω         (b) 12Ω         (c) 4Ω           (d) 9Ω

Answer»

 (b) 12Ω

Explanation:

Series connection = R1 + R2

equivalent resistance = R = R1 + R2

 = (100 ± 5) + (200 ± 7)

= 300 ± 12Ω

 maximum absolute error = 12Ω 



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