1
GATE ECE 2012
+2
-0.6
With 10 V dc connected at port A in the linear nonreciprocal two-port network shown below, the following were observed:
(i) 1Ω connected at port B draws a current of 3 A
(ii) 2.5Ω connected at port B draws a current of 2 A

For the same network, with 6 V dc connected at port A, 1Ω connected at port B draws 7/3 A. If 8 V dc is connected to port A, the open circuit voltage at port B is
A
6 V
B
7 V
C
8 V
D
9 V
2
GATE ECE 2009
+2
-0.6
In the circuit shown, what value of RL maximizes the power delivered to RL?
A
$$2.4\Omega$$
B
$$\frac8{3}\Omega$$
C
$$4\Omega$$
D
$$6\Omega$$
3
GATE ECE 2008
+2
-0.6
The Thevenin equivalent impedance Zth between the nodes P and Q in the following circuit is
A
1
B
$$1+s+\frac1{s}$$
C
$$2+s+\frac1{s}$$
D
$$\frac{s^2+s+1}{s^2+2s+1}$$
4
GATE ECE 2007
+2
-0.6
For the circuit shown in the figure, the Thevenin voltage and resistance looking into X-Y are:
A
$$\frac4{3}V,2\Omega$$
B
$$4V,\frac2{3}\Omega$$
C
$$\frac4{3}V,\frac2{3}\Omega$$
D
$$4V,2\Omega$$
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