Question

You are given "n" resistors, each of resistance r. these are combined first to get the minimum possible resistance. then these are combined to get the maximum possible resistance. the ratio between the minimum to maximum resistance is

Answer 1

if there are n resistors each of resistance n then for ,
series combination = nr
parallel combination = r/n
now we know the resitance is minimum in parallel combination and maximum in series combination
therefore,
minimum/maximum= r/n/nr
that is,
1/n(2)