ISRO Scientist or Engineer Electronics 2006
For the following questions answer them individually
ISRO Scientist or Engineer Electronics 2006 - Question 1
The value of C which gives the critical damping in the given circuit is
ISRO Scientist or Engineer Electronics 2006 - Question 2
A series RLC circuit resonates at 3 MHz and has 3-dB bandwidth of 10 kHz. The Q of the circuit at resonance
ISRO Scientist or Engineer Electronics 2006 - Question 3
The value of resistance R shown in the given figure is
ISRO Scientist or Engineer Electronics 2006 - Question 4
At 3-dB frequencies, current in the series RLC circuit equal current at resonance multiplied by
ISRO Scientist or Engineer Electronics 2006 - Question 5
A series RLC circuit resonates at 1000 kHz. At frequency of 995 kHz, the circuit impedance is
ISRO Scientist or Engineer Electronics 2006 - Question 6
If each stage had gain of 10dB and noise figure of 10dB, then the overall noise figure of two-stage cascade amplifier will be
ISRO Scientist or Engineer Electronics 2006 - Question 7
In Sigma-delta ADC, high bit accuracy is achieved by
ISRO Scientist or Engineer Electronics 2006 - Question 8
Let s(t) denote the delta function. The value of the integral
$$\int_{-a}^{a}\delta(t) \cos \left(\frac{3t}{2}\right)dt$$ is
ISRO Scientist or Engineer Electronics 2006 - Question 9
Consider the compound system shown in the above figure. Its output is equal to the input with a delay of two units. If the transfer function of the first system is given by $$H_1(Z) = \frac{Z - 0.5}{Z - 0.8}$$, then the
ISRO Scientist or Engineer Electronics 2006 - Question 10
The z-transform of the signal
$$x(n) = \begin{cases}1, & n = -1\\2, & n = 0 \\ -1, & n = 1 \\1, & n = 2 \\0, & otherwise \end{cases}$$
