1
GATE EE 2000
MCQ (Single Correct Answer)
+2
-0.6
The impedance seen by the source in the circuit in Fig. is given by GATE EE 2000 Electric Circuits - Sinusoidal Steady State Analysis Question 20 English
A
$$\left( {0.54 + j0.313} \right)\,ohms$$
B
$$\left( {4 - j2} \right)\,ohms$$
C
$$\left( {4.54 - j1.69} \right)\,ohms$$
D
$$\left( {4 + j2} \right)\,ohms$$
2
GATE EE 2000
MCQ (Single Correct Answer)
+2
-0.6
If an $$ac$$ voltage wave is corrupted with an arbitrary number of harmonics, then the overall voltage waveform differs from its fundamental frequency component in terms of
A
only the peak values
B
only the $$rms$$ values
C
only the average values
D
all the three measures (peak, $$rms$$ and average values)
3
GATE EE 1999
MCQ (Single Correct Answer)
+2
-0.6
A fixed capacitor of reactance –$$j0.02$$ $$\Omega $$ is connected in parallel across a series combination of a fixed inductor of reactance $$j0.01$$ $$\Omega $$ and a variable resistance $$R.$$ As $$R$$ is varied from zero to infinity, the locus diagram of the admittance of this $$L-C-R$$ circuit will be
A
a semi $$-$$ circle of diameter $$j$$ $$100$$ and center at zero.
B
a semi-circle of diameter $$j$$ $$50$$ and center at zero
C
a straight line inclined at an angle
D
a straight line parallel to the $$x$$ $$-$$ axis.
4
GATE EE 1999
MCQ (Single Correct Answer)
+2
-0.6
The voltage phasor of a circuit is $$10\angle {15^0}\,V$$ and the current phasor is $$2\,\,\angle - {45^0}A.$$ The active and the reactive powers in the circuit are
A
$$10$$ $$W$$ and $$17.32$$ $$VAR.$$
B
$$5$$ $$W$$ and $$8.66$$ $$VAR$$.
C
$$20$$ $$W$$ and $$60$$ $$VAR.$$
D
$$20\,\,\sqrt 2 \,\,W$$ and $$10\sqrt 2 \,\,VAR.$$
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