Question

Consider the admittance function, Y(s)=((2s^2+16s+30))/(s^2+6s+8). Determine the value of R2 after performing the second form of Foster method.

(a) 1

(b) 2

(c) 3

(d) 4

I have been asked this question by my college director while I was bunking the class.

The query is from Synthesis of R-L Network by the Foster Method in portion Elements of Realizability and Synthesis of One-Port Networks of Network Theory

Answer 1

Right choice is (d) 4

The explanation is: On taking the partial fractions we get P2 as 1. And we know R2 = 4/P2. So the value of R2 is 4Ω.

R2 = 4Ω.