1
GATE EE 1999
MCQ (Single Correct Answer)
+1
-0.3
A series $$R-L-C$$ circuit when excited by a $$10$$ $$V$$ sinusoidal voltage source of variable frequency, exhibits resonance at $$100$$ $$Hz$$ and has a $$3$$ $$dB$$ bandwidth of $$5$$ $$Hz.$$ The voltage across the inductor $$L$$ at resonace is

A
$$10$$ $$V$$
B
$$10\sqrt 2 V$$
C
$$10/\sqrt 2 V$$
D
$$200$$ $$V$$
2
GATE EE 1999
MCQ (Single Correct Answer)
+1
-0.3
The $$RMS$$ value of half $$-$$ wave rectified symmetrical square wave current of $$2A$$ is
A
$$\sqrt 2 \,\,A$$
B
$$1$$ $$A$$
C
$$1/\sqrt 2 A$$
D
$$\sqrt 3 A$$
3
GATE EE 1999
MCQ (Single Correct Answer)
+1
-0.3
The current in the circuit shown in figure is GATE EE 1999 Electric Circuits - Sinusoidal Steady State Analysis Question 27 English
A
$$5$$ $$A$$
B
$$10$$ $$A$$
C
$$15$$ $$A$$
D
$$25$$ $$A$$
4
GATE EE 1998
MCQ (Single Correct Answer)
+1
-0.3
A sinusoidal source of voltage $$V$$ and frequency $$f$$ is connected to a series circuit of variables resistance, $$R$$ and a fixed reactance, $$X.$$ The locus of the tip of the current phasor, $$I$$, as $$R$$ is varied from $$0$$ to $$\infty $$ is
A
a semicircle with a diameter of $$V/X.$$
B
a straight line with a slope of $$R/X.$$
C
an ellipse with $$V/R$$ as major axis.
D
a circle of radius $$R/X$$ and origin at $$\left( {0,\,\,\,V/2} \right).$$
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