A. R Ω
B. 2R Ω
C. 4R Ω
D. 8R Ω
As per law of resistance, the resistance of the conductor is inversely proportional to its cross-sectional area i.e. it is inversely proportional to the square of the diameter of cross-sectional area of the conductor. As per same law of resistance, the resistance of the conductor is directly proportional to the length of the conductor.
Correct Answer: R Ω ✔
Last Updated: April 09, 2018