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| 1. |
a wire of resistance r is cut into 3 equal parts. of these equal parts are connected in parallel, find the resistance of the combination |
| Answer» EXPLANATION:when the WIRE is divided into EQUAL parts it RESULTS to r/3 eachSo 1/R=1/(r/3)+1/(r/3)+1/(r/3)1/R=3/r+3/r+3/r1/R= 9/rR=r/9 | |