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Question
What is the minimum resistance which can be made using five resistors each of 1/5 Ω?
Options
1/5 Ω
1/25 Ω
1/10 Ω
25 Ω
Solution
1/25 Ω
Explanation -
Resistance will be minimum when all the five resistors are in parallel connection. Since all the five resistors are identical so the formula will be
`"R"_"min" = "R"/5`
`"R"_"min" = ((1//5))/5`
`"R"_"min" = 1/25 `Ω
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