n equal resistors are first connected in series and then connected in – InterviewSolution

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n equal resistors are first connected in series and then connected in parallel. What is the ratio of the maximum to the minimum resistance?(a) n(b) 1/n2(c) n2(d) 1/ n

Answer»

(c) n²

Explanation: In series R_s = nR

In parallel \(\frac{1}{Rp}=\frac{1}{R}+\frac{1}{R}\) ….n terms, Rp = \(\frac{R}{n}\)

∴ \(\frac{Rs}{Rp}=\frac{n^2}{1}\).

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