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SubjectTopicYearType

The transfer function of a zero-order-hold system is

Consider a unity feedback control system with open-loop transfer function

\mathrm{G} (s)=\frac{\mathrm{K}}{s(s+1)}

. The steady state error of the system due to a unit step input is

The transfer function of a tachometer is of the form

The number of roots of

s^3+5 s^2+7 s+3=0

in the left half of the

s

-plane is

The

Z

-transform of the time function

\sum_{k=0}^{\infty} \delta(n-k)

A long specimen of

p

-type semiconductor material

The static characteristic of an adequately forward biased

p-n

junction is a straight line, if the plot is of

The

f_{\mathrm{T}}

of a

\text{BJT}

is related to its

g m, \mathrm{C}_\pi

and

\mathrm{C}_\mu

as follows

The electron and hole concentrations in a intrinsic semiconductor are

n_i

and

p_i

respectively. When doped with a

p

-type material, these change to

n

and

p

, respectively. Then

The voltage across the terminals

a

and

b

in the figure is

The short-circuit admittance matrix o a two-port network is

\left[\begin{array}{cc} 0 & -1 / 2 \\ 1 / 2 & 0 \end{array}\right]

The two-port network is

The unit impulse response of a linear time-invariant system is the unit step function

u(t)

. For

t>0

, the response of the system to an excitation

e^{-a t} u(t), a>0

will be

A periodic signal

x(t)

of period

T_0

is given by

x(t)= \begin{cases}1, & |t|<T_1 \\ 0, & T_1<|t|<\frac{T_0}{2}\end{cases}

The

\text{d.c}

. component of

x(t)

Superposition theorem is

\text{NOT}

applicable to networks containing

The nodal method of circuit analysis is based on

The trigonometric Fourier series of a periodic time function can have only

f(t)=\frac{\omega}{s^2+\omega^2}

, then the value of

\lim _{t \rightarrow \infty} f(t)

The eigen values of the matrix

A=\left[\begin{array}{ll}0 & 1 \\ 1 & 0\end{array}\right]

are

A network has

7

nodes and

5

independent loops. The number of branches in the network is

The parallel RLC circuit shown in the figure is in resonance. In this circuit