1
GATE EE 2006
+1
-0.3
In the figure the current source is $$1\,\,\angle \,0\,A,$$ $$R = \,1\,\,\Omega ,$$ the impedances are $${Z_C} = - j\,\,\Omega ,$$ and $${Z_L} = 2\,j\,\,\Omega .$$ The Thevenin equivalent looking into the circuit across $$X-Y$$ is.
A
$$\sqrt 2 \,\,\angle 0,\,\,V,\,\,\left( {1 + 2j} \right)\,\,\Omega$$
B
$$2\,\,\angle {45^ \circ },\,\,V,\,\,\left( {1 - 2j} \right)\,\,\Omega$$
C
$$2\,\,\angle {45^ \circ },\,\,V,\,\,\left( {1 + j} \right)\,\,\Omega$$
D
$$\sqrt 2 \,\,\angle {45^ \circ },\,\,V,\,\,\left( {1 + j} \right)\,\,\Omega$$
2
GATE EE 2003
+1
-0.3
In the Fig. $${Z_1} = 10\angle - {60^ \circ },\,\,{Z_2} = 10\angle {60^ \circ },\,$$ $${Z_3} = 50\angle {53.13^ \circ }.\,\,$$ Thevenin's impedance seen from $$X-Y$$ is
A
$$56.6\,\,\angle {45^ \circ }$$
B
$$60\,\,\angle {30^ \circ }$$
C
$$70\,\,\angle {30^ \circ }$$
D
$$34.4\,\,\angle {65^ \circ }$$
3
GATE EE 1994
True or False
+1
-0
Superposition principle is not applicable to a network containing time-varying registors.
A
TRUE
B
FALSE
EXAM MAP
Medical
NEET