1
GATE ECE 2014 Set 3
Numerical
+2
-0
In the circuit shown in the figure, the angular frequency $$\omega$$ (in rad/s), at which the Norton equivalent impedance as seen from terminals b-b' is purely resistive, is _______.
2
GATE ECE 2013
+2
-0.6
In the circuit shown below, if the source voltage Vs =100$$\angle$$53.130V then the Thevenin’s equivalent voltage in Volts as seen by the load resistance RL is
A
$$100\angle90^0$$
B
$$800\angle0^0$$
C
$$800\angle90^0$$
D
$$100\angle60^0$$
3
GATE ECE 2013
+2
-0.6
The following arrangement consists of an ideal transformer and an attenuator which attenuates by a factor of 0.8. An ac voltage Vwx1 = 100V is applied across WX to get an open circuit voltage YZ1 V across YZ. Next, an ac voltage VYZ2 =100V is applied across YZ to get an open circuit voltage VWX2 across WX. Then, VYZ1 / VWX1 , VWX2 / VYZ2 are respectively,
A
125 / 100 and 80 / 100
B
100 / 100 and 80 / 100
C
100 / 100 and 100 / 100
D
80 / 100 and 80 / 100
4
GATE ECE 2012
+2
-0.6
Assuming both the voltage sources are in phase the value of R for which maximum power is transferred from circuit A to circuit B is
A
$$0.8\Omega$$
B
$$1.4\Omega$$
C
$$2\Omega$$
D
$$2.8\Omega$$
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