1
GATE EE 2003
+1
-0.3
Fig. shows the waveform of the current passing through an inductor of resistance $$1\,\Omega$$ and inductance $$2$$ $$H.$$ The energy absorbed by the inductor in the first four seconds is
A
$$144\,\,J$$
B
$$98$$ $$J$$
C
$$132$$ $$J$$
D
$$168$$ $$J$$
2
GATE EE 2003
+2
-0.6
In Fig. the value of $$R$$ is
A
$$10\,\,\Omega$$
B
$$18\,\,\Omega$$
C
$$24\,\,\Omega$$
D
$$12\,\,\Omega$$
3
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
$$34.4\,\,\angle {65^ \circ }$$
4
GATE EE 2003
+2
-0.6
Two ac sources feed a common variable resistive load as shown in Fig. Under the maximum power transfer condition, the power absorbed by the load resistance $${R_L}$$ is
A
$$2200$$ $$W$$
B
$$1250$$ $$W$$
C
$$1000$$ $$W$$
D
$$625$$ $$W$$
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