1
GATE EE 2005
MCQ (Single Correct Answer)
+2
-0.6
Two networks are connected in cascade as shown in the Fig. With the usual notations the equivalent $$A,B,C$$ and $$D$$ constants are obtained. Given that, $$C$$ $$ = 0.025\angle {45^ \circ },$$ the value of $${Z_2}$$ is GATE EE 2005 Electric Circuits - Two Port Networks Question 4 English
A
$$10\angle {30^ \circ }\Omega $$
B
$$40\angle - {45^ \circ }\,\,\Omega $$
C
$$1\,\,\Omega $$
D
$$0\,\,\Omega $$
2
GATE EE 2005
MCQ (Single Correct Answer)
+1
-0.3
For the two port network shown in the Fig. the $$Z$$ $$-$$ matrix is given by GATE EE 2005 Electric Circuits - Two Port Networks Question 10 English
A
$$\left[ {\matrix{ {{Z_1}} & {{Z_1} + {Z_2}} \cr {{Z_1} + {Z_2}} & {{Z_2}} \cr } } \right]$$
B
$$\left[ {\matrix{ {{Z_1}} & {{Z_1}} \cr {{Z_1} + {Z_2}} & {{Z_2}} \cr } } \right]$$
C
$$\left[ {\matrix{ {{Z_1}} & {{Z_2}} \cr {{Z_1}} & {{Z_1} + {Z_2}} \cr } } \right]$$
D
$$\left[ {\matrix{ {{Z_1}} & {{Z_1}} \cr {{Z_1}} & {{Z_1} + {Z_2}} \cr } } \right]$$
3
GATE EE 2005
MCQ (Single Correct Answer)
+2
-0.6
The $$RL$$ circuit of the figure is fed from a constant magnitude, variable frequency sinusoidal voltage source $${V_{IN.}}$$ At $$100Hz,$$ the $$R$$ and $$L$$ elements each have a voltage drop $${u_{RMS}}.$$ If the frequency of the source is changed to $$50Hz,$$ then new voltage drop across $$R$$ is GATE EE 2005 Electric Circuits - Sinusoidal Steady State Analysis Question 14 English
A
$$\sqrt {{5 \over 8}} \,\,{u_{RMS}}$$
B
$$\sqrt {{2 \over 3}} \,\,{u_{RMS}}$$
C
$$\sqrt {{8 \over 5}} \,\,{u_{RMS}}$$
D
$$\sqrt {{3 \over 2}} \,\,{u_{RMS}}$$
4
GATE EE 2005
MCQ (Single Correct Answer)
+2
-0.6
A coil of inductance $$10$$ $$H$$ resistance $$40\,\,\Omega $$ is connected as shown in Fig. After the switch $$S$$ has been in connection with point $$1$$ for a very long time, it is moved to point $$2$$ at $$t = 0.$$

For the value of $$R$$ obtained in the above question, the time taken for $$95\% $$ of the stored energy to be dissipated is close to

A
$$0.10$$ $$sec$$
B
$$0.15$$ $$sec$$
C
$$0.50$$ $$sec$$
D
$$1.0$$ $$sec$$
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