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Physics · 2025 · 1 mark
CBSE 2025 · Region 1 · Set 1 · Q2
Two wires P and Q are made of the same material. The wire Q has twice the diameter and half the length as that of wire P. If the resistance of wire P…
Two wires P and Q are made of the same material. The wire Q has twice the diameter and half the length as that of wire $\displaystyle P$. If the resistance of wire $\displaystyle P$ is $\displaystyle R$, the resistance of the wire $\displaystyle Q$ will be
Official answer
(C)
$\displaystyle \frac{R}{8}$
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