1
GATE ECE 2001
MCQ (Single Correct Answer)
+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
$${Z_{11}} = {4 \over {11}}\,\Omega ;\,\,{Z_{21}}\, = \,{{4} \over {11}}\,\Omega$$
2
GATE ECE 1999
MCQ (Single Correct Answer)
+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
3
GATE ECE 1997
MCQ (More than One Correct Answer)
+2
-0.6
In the circuil of Fig. the equivalent impedance seen across terminals A. B is
A
(16/3) $$\Omega$$
B
(8/3) $$\Omega$$
C
(8/3 + 12 j ) $$\Omega$$
D
None of the above
4
GATE ECE 1995
Subjective
+2
-0
For the 2-port network shown in Fig. determine the h-parameters. Using these parameters, calculate the output (port '2' ) $${v_2}$$, when the output port is terminated in a 3$$\Omega$$ resistance and a 1 V (DC) is applied at the input port ($${v_1}$$ = 1 V).
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