1
GATE EE 2002
MCQ (Single Correct Answer)
+2
-0.6
A series $$R-L-C$$ circuit has $$R = 50\Omega ;$$ $$L=100$$ $$\mu H$$ and $$C = 1\,\,\mu F.$$ The lower half power frequency of the circuit is
A
$$30.55$$ $$kHz$$
B
$$3.055$$ $$kHz$$
C
$$51.92$$ $$kHz$$
D
$$1.92$$ $$kHz$$
2
GATE EE 2002
MCQ (Single Correct Answer)
+2
-0.6
A first order, low pass filter is given with $$R = 50\,\,\Omega $$ and $$C$$ $$ = 5\mu F.$$ What is the frequency at which the gain of the voltage transfer function of the filter is $$0.25?$$
A
$$4.92$$ $$kHz$$
B
$$0.49$$ $$kHz$$
C
$$2.46$$ $$kHz$$
D
$$24.6$$ $$kHz$$
3
GATE EE 2002
MCQ (Single Correct Answer)
+2
-0.6
In the circuit shown in Fig. it is found that the input $$ac$$ voltage $$\left( {{V_i}} \right)$$ and current $$i$$ are in phase. The coupling coefficient is $$K = {M \over {\sqrt {{L_1}{L_2}} }},$$ where $$M$$ is the mutual inductance between the two coils. The value of $$K$$ and the dot polarity of the coil $$P-Q$$ are GATE EE 2002 Electric Circuits - Sinusoidal Steady State Analysis Question 15 English
A
$$K = 0.25$$ and dot at $$P$$
B
$$K = 0.5$$ and dot at $$P$$
C
$$K = 0.25$$ and dot at $$Q$$
D
$$K = 0.5$$ and dot at $$Q$$
4
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
$$\left( {4 + j2} \right)\,ohms$$
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