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1. An infinite ladder is constructed with 1 Ω and 2 Ω resistors as shown below. Find i
(A): 0 A
(B): 8.1818 A
(C): 9 A
(D): cannot be determined
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By: guest on 02 Jun 2017 12.55 am
As ladder is infinite ∴ 2R + R2 = 2 + 3R R2 - R - 2 = 0 ∴ R = 2 or R = -1 Negative value of R is not possible ∴ R = 2 ∴ i = 9 A.
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