state gov UP Police Assistant Operator (Radio Cadre) Mock Test General Science Physics Current Electricity
The dependence of resistance (R) of a conducting wire on its length (l) is given by:
1
\(R \propto \frac{1}{l}\)
2
\(R \propto l\)
3
\(R \propto \frac{1}{l^2}\)
4
\(R \propto l^2\)