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A piece of wire resistance R is cut into five equal parts. These parts are then connected in parallel. If the equivalent resistance of this combination is R’ then the ratio R/R' is |
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Answer» I/25 Equivalent resistance is given by `1/(R.)=5/R+5/R+5/R+5/R+5/R=25/R` `R/(R.)=25`. Therefore, the right option is d. 25. |
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