Electronics and Communication Engineering - Networks Analysis and Synthesis - Discussion

Discussion Forum : Networks Analysis and Synthesis - Section 1 (Q.No. 13)
13.
Z(c) for the network shown in the figure is The value of C and R are, respectively
1/6 F and 4 Ω
2/9 F and 9/2 Ω
2/3 F and 1/2 Ω
1/2 F and 1 Ω
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
22 comments Page 1 of 3.

Prem said:   1 decade ago
Could you please provide explanation for this by formula?

Yasin said:   1 decade ago
For explanation refer to topic concept of network synthesis through long division method.

Puja said:   1 decade ago
Can you explain the answer?

James said:   1 decade ago
Can you explain with formula?

SATYAM said:   1 decade ago
Best explanation will be that at s=0 i.e at w=0 capacitor will be have as an open circuit.

So Z(s) = 8 at s = 0 i.e 4+R+8.

R = 4 ohm.

Of course you can solve it completely also.
(2)

Manikumar said:   1 decade ago
Add admittances of cap and res = (S/2)+1.

Then sum res = R+(2/S+2).

Add admittances = (CS)+(S+2/(R*(S+2)+2)).

Total = 3+(R*(S+2)+2))/(CS(R*(S+2)+2)) + (S+2));

Vini said:   1 decade ago
Calculate impedance and compare?

Amit kumar said:   10 years ago
Please explain this question.

Anusha sri said:   9 years ago
Please explain in detail.

Surya said:   9 years ago
@Satyam is correct.

Put s = 0, where the capacitor is open circuited, then find the equivalent impedance. After that put s = 0 in given z (s) that is get z (0). Equate this with the previous result and get R and in option, there is only one option with R = 4. So A is the right answer.


Post your comments here:

Your comments will be displayed after verification.