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Physics · PYQ NEET UG 2025
हिन्दीA wire of resistance R is cut into 8 equal pieces. From these pieces two equivalent resistances are made by adding four of these together in parallel. Then these two sets are added in series. The net effective resistance of the combination is :
Correct answer · Option 3
\( \frac{R}{16} \)
Explanation
Resistance of each piece is \( R/8 \). Four pieces in parallel give \( R_{\text{set}} = \frac{R/8}{4} = R/32 \). Two such sets in series give \( R_{\text{net}} = R/32 + R/32 = R/16 \).
