Question
Question: Figure shows an infinite ladder network of resistance. The equivalent resistance between points X an...
Figure shows an infinite ladder network of resistance. The equivalent resistance between points X and Y is –
A
Infinite
B
3 Ω
C
8.62 Ω
D
1.62 Ω
Answer
1.62 Ω
Explanation
Solution
Use approximate method by solving first two blocks only.
Rapprox = 5/3 = 1.66 Ω
Req is slightly less than 1.66 Ω