Consider an infinite ladder network shown in fig. A voltage is applied between points A and B. If the voltage is halved after each section, find the ratio R 1 /R 2 . Suggest a method to terminate it after a few sections without introducing much error in attenuation.
Text Solution
Verified by ExpertsThe correct answer is:
CHECK THE SOLUTION.
( 
)
Sol.
i = i 1 + i 2
⇒ 
⇒ 
⇒ 
R 2 = 2R 1
R AB = R eq = R 1 + 
On solving
R 2 eq – R 1 R eq –2R 1 2 – 0
R eq = 2R 1
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