Two wires $A$ and $B$ are of same metal, have the same area of cross$-$section and have their lengths in the ratio $2: 1$. What will be the ratio of currents flowing through them respectively, when the same potential difference is applied across length of each of them ?
Two wires $A$ and $B$ are of same metal, have the same area of cross$-$section and have their lengths in the ratio $2: 1$. What will be the ratio of currents flowing through them respectively, when the same potential difference is applied across length of each of them ?
$\frac{ I _{ A }}{ I _{ B }}=\frac{ R _{ B }}{ R _{ A }}=\frac{ L _{ B }}{ L _{ A }}=\frac{2}{1}$
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