NEW
Font size
WorksheetsTwo Port Network - H and ABCD
Total questions: 14
Worksheet time: 26mins
If the Z parameters of a two-port network are Z11= 5Ω; Z22=7 Ω; Z21=Z12=3 Ω then the A, B, C and D parameters are respectively given by
5/3, 26/3, 1/3, 7/3
10/3, 52/3, 2/3, 14/3
15/3, 78/3, 3/3, 21/3
The h parameters h11 and h12 are obtained
By shorting output terminals
By opening input terminals
By shorting input terminals
By opening output terminals
The h-parameters h11 and h22 are related to z and y parameters as
h11 = z11 and h22= 1/z22
h11 = z11 and h22=y22
h11=Δz/z22 and h22=1/z22
h11=1/y11 and h22=y22
A two-port network satisfies the condition A=D=(3/2)B=(4/3)C. The z11 of the network
5/3
4/3
2/3
1/3
An open circuit reverse voltage gain in h-parameters is a unitless quantity and generally equivalent to ________
V1 / I1 (keeping V2 = 0)
I2 / I1 (keeping V2 = 0)
V1 / V2 (keeping I1 = 0)
I2 / V2 (keeping I1 = 0)
For the circuit given in Fig 1, the values of the h parameter is given as follows h = [16, 3; -2, 0.01]. The value of the ratio V2/V1 is ______________
0.3299
0.8942
1.6
0.2941
The h parameters of the circuit shown in Fig. 2 is
For the circuit given Fig. 3, the value of the hybrid parameter h22 is ___________
0.2 Ω
0.5 Ω
0.1 Ω
0.3 Ω
A 2-port network is shown in the Fig 4. The parameter h21 for this network can be given by _______
−21
21
−23
23
3. If a two port network is passive or reciprocal, then with the usual notation, the following relationship
h12 = h21
h12 = - h21
h11 = h22
(a) h11 h22 - h12 h21 = 1
3. A two-port network shown below is excited by external DC sources. The voltages and the currents are measured with voltmeters V1, V2 and ammeters A1, A2 (all assumed to be ideal), as indicated in the Fig. 5. Under following switch condition, the readings obtained are:
(i) S1 -Open, S2 -Closed A1= 0A, V1= 4.5V, V2= 1.5V, A2 =1A
(ii) S1 – Closed, S2 - Open, A1= 4A, V1= 6V, V2= 6V, A2 =0A
The h-parameter matrix for this network is:
[-3, 3; -1,0,67]
[-3, -1; 3,0,67]
[3, 3; 1,0,67]
[3, 1; -3,-0,67]
In the circuit shown below in Fig. 6, find the transmission parameter A.
6/5
5/6
3/4
4/3
In the circuit shown in Fig. 7, find the transmission parameter C
4/5
3/5
2/5
1/5
In the circuit shown in Fig. 8, find the transmission parameter B.
15/5
17/5
19/5
21/5
