1
GATE EE 2012
+2
-0.6
The voltage gain $${A_V}$$ of the circuit shown below is
A
$$\left| {{A_V}} \right| \approx 200$$
B
$$\left| {{A_V}} \right| \approx 100$$
C
$$\left| {{A_V}} \right| \approx 20$$
D
$$\left| {{A_V}} \right| \approx 10$$
2
GATE EE 2012
+2
-0.6
The circuit shown is a
A
low pass filter with $${f_{3db}} = {1 \over {\left( {{R_1} + {R_2}} \right)C}}rad/s$$
B
high pass filter with $${f_{3db}} = {1 \over {{R_1}C}}rad/s$$
C
low pass filter with $${f_{3db}} = {1 \over {{R_1}C}}rad/s$$
D
high pass filter with $${f_{3db}} = {1 \over {\left( {{R_1} + {R_2}} \right)C}}rad/s$$
3
GATE EE 2012
+2
-0.6
The feedback system shown below oscillates at $$2$$ rad/s when
A
$$K=2$$ and $$a=0.75$$
B
$$K=3$$ and $$a=0.75$$
C
$$K=4$$ and $$a=0.5$$
D
$$K=2$$ and $$a=0.5$$
4
GATE EE 2012
+1
-0.3
A system with transfer function $$\,G\left( s \right) = {{\left( {{s^2} + 9} \right)\left( {s + 2} \right)} \over {\left( {s + 1} \right)\left( {s + 3} \right)\left( {s + 4} \right)}}$$ is excited by $$\sin \left( {\omega t} \right).$$ The steady-state output of the system is zero at
A
$$\omega = 1\,\,rad/s$$
B
$$\omega = 2\,\,rad/s$$
C
$$\omega = 3\,\,rad/s$$
D
$$\omega = 4\,\,rad/s$$
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