226. The impulse response h(t) of a linear invariant continuous time system is given by h(t) = exp (- 2t) u(t), where u(t) denotes the unit step function. The output of this system to the sinusoidal input x(t) = 2cos(2t) for all time t, is
227. In the following circuit , the comparator output in log: "I" if V1 > V2 and is logic "0" otherwise. The D/A conversion is done as per the relations VDAC = 2n-2 Volts, where b3 (MSB), b2, b1 and b0 (LSB) are the counter outputs. The counter starts from the clear state
The magnitude of the error between VDAC and Vin at steady state in volts is
228. The Huna leader Mihirgula was defeated by?
229. Consider the resonant circuit as shown below
The circuit is scaled modified so that Zmax 104 and ωo = 108 Radians. Find the required element values
230. Consider the z-transform X(z) = 5z2 + 4z-1 + 3; 0 < |z| < ∞ The inverse transform x[n] is
231. Find equivalent capacitance if each capacitance is 2 F.
232. In a JK flip-flop, J is connected to Q and K is connected to Q outputs. The JK FF converts into a
233. A point charge of 6 μC is located at the origin, uniform line charge density of 180 nC/m of 8 m length lies along the x axis and a uniform sheet of charge equal to 25 nC/m2 of area p x 42 lies in the z = 0 plane. Calculate total electric flux leaving the surface of sphere of 4 m radius centered at origin.
234. An infinite ladder is constructed with 1 Ω and 2 Ω resistors as shown below. Find i
235. The Gandhara School of art developed during the time of,?
236. Find current flowing through 1 H inductor at t = 0, at which switch 'S' is opened.
237. The polar plot for positive frequencies is shown below. The gain margin is
238. Input and output impedance with feedback for voltage series feedback having A = -200, R1 = 10 kΩ, R0 = 50 kΩ and feedback factor β = -0.2 will be
239. Z = __________
240. An FM transmitter delivers 80W to a load of 30 W when no modulation is present. The carrier is now frequency modulated by a single sinusoidal signal and the peak frequency deviation is so adjusted to make the amplitude of the second sideband is zero in the given output.
J0(0, 0) = 1,
J0(2, 4) = 0,
J0(3.8) = - 0.4,
J0(5.1)= - 0.1
J1(2, 4) = 0.52,
J1((3.8) = 0,
J1(5.1) = - 0.33,
J2(2.4) = 0.1
J2(3.8)= 0.41,
J2(5.1) = 0
The power in all the remaining sidebands is :
241. In the circuit shown, all the transmission line sections are lossless. The Voltage Standing Wave Ration (VSWR) on the 60W line is
242. It is desired to design a phase shift oscillator using an FET having a gm = 5000 μSiemen, rd = 40 kΩ and feedback circuit value of R = 10 K. Then value of C for oscillator operation at 1 kHz and that of RD for A = 40 to ensure oscillator action are
243. The type of feedback in the following circuit diagram
244. Modem warfare has changed from large scale clashes of armies to suppression of civilian populations. Chemical agents that do their work silently appear to be suited to such warfare; and regretfully, there exist, people in military establishments who think that chemical agents are useful tools for their cause, which of the following statements best sums up the meaning of the above passage:
245. Sonia Gandhi has became an Indian Citizen by?
246. A power of 100 W is radiated from an isotropic radiator. The power radiated peer unit solid angle and the power density at a distance of 10 km from the antenna is respectively
247. For signal flow graph shown in following figure determine the ratio X5|X1. Use Mason's gain formula for signal flow graph.
248. Consider following statements : Maximum energy of electrons liberated photoelectrically is independent of light intensity Maximum energy of electrons liberated photoelectrically varies nonlinearly with frequency of incident light.
249. The fourier transform of a voltage signal x(t) is X(f). The unit of X(f) is __________ .
250. The inconsistency of Ampere's law can be removed by adding __________ to it.