Physics · 2022
JEE Main · 26 June 2022, Shift 1 · Q43
An aluminium wire is stretched to make its length, 0.4 % larger. The percentage change in resistance is:
An aluminium wire is stretched to make its length, $\displaystyle 0.4 \%$ larger. The percentage change in resistance is :
Official answer
(3)
0.$\displaystyle 8$%
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JEE Main 2022 Physics question, with the answer from NTA’s final answer key. Where our answers come from.