1
GATE EE 2000
MCQ (Single Correct Answer)
+1
-0.3
An analog electronic circuit that measures $$rms$$ value of the input voltage by averaging the square of the instantaneous voltage level, responds slowly to changes in the input signal due to
A
the ''square'' function built into the circuit
B
the ''square-root'' function built into the circuit
C
the averaging function built into the circuit
D
none of the above
2
GATE EE 2000
Subjective
+5
-0
A current amplifier has an input resistance of $$10\Omega ,$$ an output resistance of $$10\,\,k\Omega$$ and a Current gain of $$1000.$$ It is feed by a current source having a source resistance of $$10$$ $$k\Omega$$ and its output connected to a $$10\,\,k\Omega$$ load resistance. Find the voltage gain and the power gain
3
GATE EE 2000
MCQ (Single Correct Answer)
+1
-0.3
Feedback control systems are
A
insensitive to both forward and feedback path parameter changes.
B
less sensitive to feedback path parameter changes than to forward path parameter changes.
C
less sensitive to forward-path parameter changes than to feedback path parameter changes.
D
equally sensitive to forward and feedback path parameter changes.
4
GATE EE 2000
MCQ (Single Correct Answer)
+1
-0.3
A linear time-invariant system initially at rest, when subjected to a unit-step input, gives a response $$y\left( t \right) = t{e^{ - t}},\,\,t > 0.$$ The transfer function of the system is:
A
$${1 \over {{{\left( {s + 1} \right)}^2}}}$$
B
$${1 \over {s{{\left( {s + 1} \right)}^2}}}$$
C
$${s \over {{{\left( {s + 1} \right)}^2}}}$$
D
$${1 \over {s\left( {s + 1} \right)}}$$
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