Physics · 2017
NEET 2017 · 7 May · Code A · Q45
The resistance of a wire is 'R' ohm. If it is melted and stretched to ' n ' times its original length, its new resistance will be:
The resistance of a wire is 'R' ohm. If it is melted and stretched to '$\displaystyle n$' times its original length, its new resistance will be :
Official answer
From NTA’s final answer key for this paper.
(3)
$\displaystyle n^2 R$
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NEET (UG) 2017 Physics question, with the answer from NTA’s final answer key. Where our answers come from.