Assume that the OP_AMP in the figure, ideal (a) Obtain an expression for V0 in terms of Vs, R, and the reverse satura

The current gain of a BJT is

An emitter-follower amplifier is shown in the figure, Zi is the impedance looking into the base of the transistor and Z0

An npn BJT has gm = 38 mA/V, $${C_\mu }\, = {10^{ - 14}}$$ F, $${C_\pi }\, = 4\, \times {10^{ - 13}}\,F$$ and DC current

The Oscillator circuit shown in the figure is

The ideal Op-Amp has the following characteristics.

Consider the following two statements. Statement 1: Astable Multivibrator can be used for generating Square Wave. St

The Inverting Op-Amp shown in the figure, has an Open-loop gain of 100. The closed loop gain $${{{V_o}} \over {{V_s}}}$

In the figure assume the Op-Amps to be ideal. The output V0 of the circuit is

An Amplifier using an Op-Amp with a Slew-Rate SR = V/$$\mu $$sec, has a gain of 40 dB. If this amplifier has to faith f

The PDF of a Gaussian random variable X is given by $${p_x}(x) = \,{1 \over {3\sqrt {2\pi } }}\,\exp \,[ - \,{(x - 4)^2}

A band limited signal is sampled at the Nyquist rate. The signal can be recovered by passing the samples through

During transmission over a communication channel, bit errors occur independently with probability 'p'. If a block of n b

A video transmission system transmits 625 picture frames per second. Each frame consists of a $$400\,\, \times \,\,400$$

The root-locus diagram for a closed loop feedback system is shown in Figure. The system is overdamped.

A feedback control system is shown in figure (a) Draw the signal-flow graph that represents the system. (b) Find the to

If the characteristic equation of a closed-loop system is s2 + 2s + 2 =0, then the system is

The equivalent of the block diagram in Figure is given as

An electrical system and its signal-flow graph representations are shown in Figure (a) and (b) respectively. The values

The feedback control system in Figure is stable

Consider the feedback control system shown in figure. (a) Find the transfer function of the system and its characterist

Given the $$G\left(s\right)H\left(s\right)=\frac K{s\left(s+1\right)\left(s+3\right)}$$, the point of intersection of th

The Nyquist plot for the open-loop transfer function G(s) of a unity negative feedback system is shown in figure. if G(s

The open-loop DC gain of a unity negative feedback system with closed-loop transfer function $${{s + 4} \over {{s^2} + 7

For the feedback control system shown in the figure, the process transfer function is Gp(s) = $${1 \over {s(s + 1)}},$$

In the figure the LED

For the digital block shown in Figure. 2(a), the output Y=f(S3,S2,S1,S0) where S3 is MSB and S0 is LSB. Y is given in te

The digital block in the figure is realized using two positive edge triggered D flip-flops. Assume that for t < t0, Q

The 2’s complement representation of –17 is

For the ring oscillator shown in the figure, the propagation delay of each inverter is 100 pico sec. What is the fundame

In the TTL circuit in Figure 2.11, $${S_0}$$ to $${S_0}$$ are select lines and $${X_7}$$ and $${X_0}$$are input lines. $

A transmission line is distortionless if

If a plane electromagnetic wave satisfies the equation $${{{\partial ^2}\,{E_x}} \over {\partial \,{z^2}}} = \,{c^2}{{{\

A uniform plane electromagnetic wave incident normally on a plane surface of a dielectric material is reflected with a V

The phase velocity of waves propagating in a hollow metal waveguide is

The dominant mode in a rectangular waveguide is $$T{E_{10}}$$, because this mode has

A medium has breakdown strength of $$16$$ KV/m r.m.s. Its relative permeability is $$1.0$$ and relative permittivity is

In a uniform linear array, four isotropic radiating elements are spaced $$\lambda /4$$ apart. The progressive phase shif

A medium wave radio transmitter operating at a wavelength of 492 m has a tower antenna of height 124m. What is the radia

A rectangular hollow metal waveguide has dimensions a = 2.29 cm and b = 1.02 cm. Microwave power at 10 GHz is transmitte

A material has conductivity of 10-2 mho/m and a relative permittivity of 4. The frequency at which the conduction curren

MOSFET can be used as a

Solve the differential equation $${{{d^2}y} \over {d{x^2}}} + y = x\,\,$$ with the following conditions $$(i)$$ at $$x=

An 8085 microprocessor based system uses a 4K × 8-bit RAM whose starting address is AA00H. The address of the last byte

The circuit shown in Fig. is operating in steady-state with switch $${S_1}$$ closed. The switch $${S_1}$$ is opened at $

When the angular frequency $$\omega $$ in Fig. is varied from $$0$$ to $$\infty $$ the locus of the current phasor $${{\

If each branch of a Delta circuit has impedance $$\sqrt 3 \,Z$$, then each branch of the equivalent Wye circuit has impe

The Z parameters $${Z_{11}}$$ and $${Z_{21}}$$ for the 2-port network in Fig. are

The admittance parameters of a 2-port network shown in Fig. are given by $${Y_{11}} = \,2\,\,mho$$, $${Y_{12}}$$ = - 0.5

The voltage e0 in figure is

In figure, the value of the load resistor R which maximizes the power delivered to it is

For the circuit shown in the figure, determine the phasors E2, E0, I and I1.

The admittance parameter Y12 in the 2-port network in Figure is

The voltage e0 in Fig. is

If a signal f(t) has energy E, the energy of the signal f(2t) is equal to

The region of convergence of the z- transform of a unit step function is

The transfer function of a system is given by $$H\left( s \right) = {1 \over {{s^2}\left( {s - 2} \right)}}$$. The impul

The impulse response function of four linear system S1, S2, S3, S4 are given respectively by $${h_1}$$(t), = 1; $${h

The Fourier transform $$G(\omega )$$ of the signal g(t) in Fig.(1) is given as $$G(\omega ) = {1 \over {{\omega ^2}}}({

A band limited signal is sampled at the Nyquist rate. The signal can be recovered by passing the samples through

A base band signal g(t) band limited to 100 Hz modulates a carrier of frequency $${{f_0}}$$ Hz. The modulated signal g(t

The Nyquist sampling interval, for the signal Sinc(700t) + Sinc(500t) is

Let $$\delta (t)$$ denote the delta function. The value of the the integral $$\int\limits_{ - \infty }^\infty {\delta (

The PSD and the power of a signal g(t) are, respectively, Sg($$\omega$$) and Pg. The PSD and the power of the signal ag(