1
GATE ECE 2003
+2
-0.6
The impedance parameters Z11 and Z12 of the two-port network in figure are A
Z11 = 2.75Ω and Z12 =0.25Ω
B
Z11 = 3Ω and Z12 =0.5Ω
C
Z11 = 3Ω and Z12 =0.25Ω
D
Z11 = 2.25Ω and Z12 =0.5Ω
2
GATE ECE 2003
+2
-0.6
The driving-point impedance Z(s) of a network has the pole-zero locations as shown in figure. If Z(0) = 3, then Z(s) is A
$${{3\,(s + 3)} \over {{s^2}\, + \,2s\, + 3}}$$
B
$${{2\,(s + 3)} \over {{s^2}\, + \,2s\, + 2}}$$
C
$${{3\,(s - 3)} \over {{s^2}\, - \,2s\, - 3}}$$
D
$${{2\,(s - 3)} \over {{s^2}\, - \,2s\, - 3}}$$
3
GATE ECE 2001
+2
-0.6
The Z parameters $${Z_{11}}$$ and $${Z_{21}}$$ for the 2-port network in Fig. are A
$${Z_{11}} = - {6 \over {11}}\,\Omega ;\,\,{Z_{21}}\, = \,{{16} \over {11}}\,\Omega$$
B
$${Z_{11}} = {6 \over {11}}\,\Omega ;\,\,{Z_{21}}\, = \,{{4} \over {11}}\,\Omega$$
C
$${Z_{11}} = {6 \over {11}}\,\Omega ;\,\,{Z_{21}}\, = \,-{{16} \over {11}}\,\Omega$$
D
$${Z_{11}} = {4 \over {11}}\,\Omega ;\,\,{Z_{21}}\, = \,{{4} \over {11}}\,\Omega$$
4
GATE ECE 1999
+2
-0.6
A Delta-connected network with its Wye-equivalent is shown in Fig.P2.4. The resistance R1, R2 and R3 (in ohms) are respectively A
1.5, 3 and 9
B
3, 9 and 1.5
C
9, 3 and 1.5
D
3, 1.5 and 9
GATE ECE Subjects
Network Theory
Control Systems
Electronic Devices and VLSI
Analog Circuits
Digital Circuits
Microprocessors
Signals and Systems
Communications
Electromagnetics
General Aptitude
Engineering Mathematics
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