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SubjectTopicYearType

The region of convergence of

Z

-transform of the sequence

\left(\frac{5}{6}\right)^{n} u(n)-\left(\frac{6}{5}\right)^{n} u(-n-1)

The condition on

\mathrm{R}, \mathrm{L}

\mathrm{C}

such that the step response

y(t)

in the figure has no oscillations, is

\text{ABCD}

parameters of an ideal

n: 1

transformer shown in the figure are

\left[\begin{array}{ll}n & 0 \\ 0 & \mathrm{X}\end{array}\right]

X

\mathrm{RLC}

\mathrm{R}=2 \; \mathrm{k} \Omega, \mathrm{L}=1 \; \mathrm{H}

\mathrm{C} \frac{1}{400}=\mu \mathrm{F}

. The resonant frequency is

The maximum power that can be transferred to the load resistor

R_{L}

from the voltage source in the figure is

The bandgap of Silicon at room temperature is

A Silicon PN junction at a temperature of

20^{\circ} \mathrm{C}

has a reverse saturation current of

10

(\mathrm{pA})

. The reverse saturation current at

40^{\circ} \mathrm{C}

for the same bias is approximately

The primary reason for the widespread use of Silicon in semiconductor device technology is

The effect of current shunt feedback in an amplifier is to

The input resistance

\text{R}_{\mathrm{i}}

of the amplifier shown in the figure is

The first and the last critical frequency of an

\text{RC}

-driving point impedance function must respectively be

The cascode amplifier is a multistage configuration of

43

in Hexadecimal and

\text{BCD}

number system is respectively

The Boolean function

f

implemented in the figure using two input multiplexers is

x(n)=\left(\frac{1}{2}\right)^{n} u(n), y(n)=x^{2}(n)

\mathrm{Y}\left(e^{j i e}\right)

be the Fourier transform of

y(n)

Y\left(e^{j i e}\right)

Find the correct match between group

1

2.

The power in the signal

s(t)=8 \cos \left(20 \pi t-\frac{\pi}{2}\right)+

4 \sin (15 \pi t)

Which of the following analog modulation scheme requires the minimum transmitted power and minimum channel bandwidth?

A linear system is equivalently represented by two sets of state equations.

\dot{X}=\mathrm{AX}+\mathrm{BU} \text{ and } \dot{W}=\mathrm{CW}+\mathrm{DU} \text{. }

The eigenvalues of the representations are also computed as

\{\lambda\}

\{\mu\}

. Which one of the following statements is true?

Despite the presence of negative feedback, control systems still have problems of instability because the