CUET Preparation Today
The resistance of a cylindrical conductor is: |
inversely proportional to its length directly proportional to the square of the radius inversely proportional to the square of the radius directly proportional to the square root of its length |
inversely proportional to the square of the radius |
The correct answer is Option (3) → inversely proportional to the square of the radius Resistance of a cylindrical conductor: $R = \rho \frac{L}{A}$ $A = \pi r^2$ $R = \rho \frac{L}{\pi r^2}$ So, $R \propto \frac{1}{r^2}$ Answer: Inversely proportional to the square of the radius |
