The resistance of a conductor of diameter d and length l is R Ω If the diameter of the
conductor is halved and its length is doubled, the resistance will be
(A) R Ω
(B) 2R Ω
(C) 4R Ω
(D) 8R Ω
Answer: (D) 8R Ω ✅
The resistance of a conductor of diameter d and length l is R Ω If the diameter of the
conductor is halved and its length is doubled, the resistance will be
(A) R Ω
(B) 2R Ω
(C) 4R Ω
(D) 8R Ω
Answer: (D) 8R Ω ✅
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