Physics · 2024
JEE Main · 6 April 2024, Shift 1 · Q58
A wire of resistance R and radius r is stretched till its radius became r / 2. If new resistance of the stretched wire is x R, then value of x is…
A wire of resistance $\displaystyle R$ and radius $\displaystyle r$ is stretched till its radius became $\displaystyle r / 2$. If new resistance of the stretched wire is $\displaystyle x R$, then value of $\displaystyle x$ is $\displaystyle \_\_\_\_$.
Official answer
From NTA’s final answer key for this paper.
16
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JEE Main 2024 Physics question, with the answer from NTA’s final answer key. Where our answers come from.