If a Resistance R Is Melted and Recast to Half of Its Length, Then the New Resistance of the Wire Will Be

(A) R/2

(B) R/4

(C) 2R

(D) R

Correct Answer: Option (B) R/4

If a resistance R is melted and recast to half of its length, then the new resistance of the wire will be R/4.

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