Question

what would be new resistance if length of conductor is doubled and thickness is helved

Answer 1

hey here is ur answer

resistance of a conductor is directly proportional to the length of the conductor and inversely proportional to the area of cross-section or thick ness of the wire

so when length is doubled the resistance also gets doubled and when thickness is halved again the resistance increases or gets doubled

so as both are done at a time the resistance increases by four times

I hope this helps you