Determine the current drawn from a `12V` supply with internal resistance `0.5Omega`. By the infinite network shown in fig. Each resistor has `1Omega` resistance.

Answer

3.73

Explanation

First calcualte net resistance of `infty` network
`x=2+(x)/(x+1),x^(2)-2x-2=0`,
on solving `x=1+sqrt(3)=2.73Omega`
Total resistance `=2.73+0.5=3.23Omega`
`1=(12)/(3.23)=3.73A`