What is the new resistance of a wire of resistance R is doubled on itself?
Submitted on 04/02/2024 Answered by Vandana Rana
Answer :
When a given metallic wire is doubled on itself its length is reduced to half but its area of cross section gets doubled. So the resistance of the wire will become one-fourth i.e. the new resistance of wire will be R/4 or 0.25R.