STANDARD Physics Combination of Resistors MCQ Question
n resistors each of resistance R first combine to give maximum effective resistance and then combine to give minimum effective resistance. The ratio of the maximum to minimum resistance is
n
n²
n² − 1
n³
Correct Answer
Detailed Explanation
To get maximum equivalent resistance, all resistances must be connected in series, giving nR. For minimum equivalent resistance, all resistances must be connected in parallel, giving R/n. The ratio is (nR)/(R/n) = n².
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