A network of resistance is constructed with R 1 and R 2 as shown in the figure. The potential at the points 1, 2, 3,........, N are V 1 , V 2 , V 3 ,........., V n respectively each having a potential K time smaller than previous one. Find
(i) 
× 
in terms of K. 
× 
,K
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CHECK THE SOLUTION.
[(i) a, (ii) c]
Sol. (i)
Energy kirchoffs first law at first junction
= 
+ 
⇒ 
= 
+ 
= 
.
⇒ 
= 
= 
.........
= 
, 
= (K – 1) .........
& ⇒ 
= 
(ii) I = 
= 
⇒ I = 
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