Networks Analysis and Synthesis - Engineering

Q1:

A wire has a resistance R ohm. If another wire of the same material and same weight has double the diameter (as compared to the first wire), the resistance of the second wire will be

A 0.5 R

B 0.25 R

C 0.125 R

D R/16

ANS:D - R/16

Since diameter is double, area of cross-section is four times and length is one-fourth. .