Question

Please solve the following questions fast

Answer 1

let 2 resistors be r1 ,r2

series: r1+r2 =s

parallel:1/r1+1/r2 =p

lcm of parallel connection

r1+r2/r1r2

given s=np

by comparing n=r1r2

let us take r1=1 ,r2 =1

substitute s=1+1=2 ,p= 1+1/1=2

therefore n=1 correct option is D