1
GATE ECE 2000
+2
-0.6
In Fig., the steady state output voltage corresponding to the input voltage $$\left( {3 + 4\sin \,\,100\,t} \right)$$ $$V$$ is
A
$$3 + {4 \over {\sqrt 2 }}\sin \left( {100\,t - {\pi \over 4}} \right)\,\,V$$
B
$$3 + 4\sqrt 2 \sin \left( {100\,t - {\pi \over 4}} \right)\,\,V$$
C
$${3 \over 2} + {4 \over {\sqrt 2 }}\sin \left( {100\,t + {\pi \over 4}} \right)\,\,V$$
D
$$3 + 4\sin \left( {100\,t - {\pi \over 4}} \right)\,\,V$$
2
GATE ECE 1993
+2
-0.6
In figure, A1, A2 and A3 are ideal ammeters. If A1 reads 5 A, A2, A2 reads 12 A, then A3 should read
A
7A
B
12A
C
13A
D
17A
3
GATE ECE 1992
+2
-0.6
For the series R-L-C circuit of figure(a), the partial phasor diagram at a certain frequency is shown in figure (b).The operating frequency of the circuit is:
A
equal to the resonance frequency
B
less than the resonance frequency
C
greater than the resonance frequency
D
not zero
4
GATE ECE 1991
+2
-0.6
In a series RLC high Q circuit, the current peaks at a frequency
A
equal to the resonant frequency
B
greater than the resonant frequency
C
less than the resonant frequency
D
none of the above
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