You Are On Multi Choice Question Bank SET 1467
73352. Consider Continuous time system y(t) = x(t) - . For the system to be linear response ax1(t) + bx2(t) should be ay1(t) + by2(t) with relation between constant 'a' and 'b' as __________ .
73353. Hari (H), Gita (G), Irfan (I) and Saira (S) are sibiligs (i.e. brothers and sisters). All were born on 1st January. The age difference between any two successive siblings (that is born one after another) is less than 3 years. Given the following facts:(i) Hari's age + Gita's age > Irfan's age + Saira's age.(ii) The age difference between Gita and Saira is 1 year. However, Gita is not the oldest and Saira is not the youngest.(iii) There are not twins.In what order were they born (Oldest first)?
73354. If a signal f(t/2) has energy is E/n then energy of the signal f(nt) is equal to __________ (n is constant)
73355. The surface charge density on a conductor is 1.55 x 10-9C/m2. The conductor is immersed in water with ε = 78ε0.The electric field will be __________ .
73360. A 300 MHz plane EM wave is propagating in free space. The wave is incident normally on an infinite copper slap. The antenuation constant for the wave is (σcopper = 5.8 x 107 mho/ m)
73363. A periodic voltage has following values for equal time intervals changing suddenly from one value to next : 0, 5, 10, 20, 50, 60, 50, 20, 10, 5, 0, - 5, - 10 etc.What would be the RMS value of a sine wave having the same peak value as that of the above mentioned periodic wave?
73364. Px(X) = M exp(- 2 |x|) + N exp(- 3 |x|) is the probability density function for the real random variable X, over the entire x axis. M and N are both positive real numbers. The equation relating M and N is
73365. The open loop transfer function of a unity feedback control system is given as The phase cross over frequency and the gain margin are respectively.
73367. In a J-K FF we have J = Q and K = 1. Assuming the FF was initially cleared and then clocked for 6 pulses, the sequence at the Q output will be
73368. The following sequence represents autocorrelation of a real valued signal. The energy of real valued sequence is given by __________ x(n) = {1, _, 3, _, 5, _, 7, _, 9, 10, _, 8, _, 6, _, 4, _, 2, _}↑
73373. Conversion rate, for a successive approximation ADC which uses 2 MHz clock and 5 bit binary ladder containing 8 VV reference voltage is __________ .
73376. For the circuit shown in the following figure, transistors M1 and M2 are identical NMOS transistors. Assume that M2 is in saturation and the output is unloadedThe current Ix is related to Ibias as
73377. A signal with ± 10 V ranged and 1 KHz band width is being digitized using a sample and hold circuit and a 10 bit quantizer. The quantization step is :
73379. For the 8085 assembly language program given below, the content of the accumulator after the execution of the program is
73380. Consider the following BJT circuit:hie = 2 k ohmhfe = 100hre = 2.5 x 10-4The value of Ri is :
73381. One of a loss-less transmission line having the characteristic impedance of 75 Ω and length of 1cm is short-circuit. At 3 GHz, the input impedance at the other end of the transmission line is
73383. The electric field of uniform plane wave is given by E = 20 sin (2 p x 108t- p z) x + 20 cos (2 p x 108t - p z) y. The polarization of wave is
73384. The Z-transform of a particular signal is given as X(Z) = where This system after practical implementation will be
73385. The JFET in the circuit shown in figure has an IDSS = 10 mA and Vp = -5 V. The value of the resistance Rs for a drain current IDS = 6.4 mA is (select the nearest value)
73386. In the circuit s closed for a long time and steady state is reached. s is opened at t = 0+ Determine current through resistor.
73388. A system described by the following differential equation is initially at rest. For input x(t) - 2u(t), the output y(t) is :
73389. A transmission line terminates in two branches, each of length λ/4, as shown. The branches are terminated by 50Ω loads. The lines are lossless and have the characteristics impedances shown. Determine the impedance Z1 as seen by the source
73391. The counter shown in figure is built using 4 negative edge triggered toggle FFs. The FFs can be set synchronously when R = 0. The combinational logic required to realize a modulo 13 counter is
73392. Consider the following statements a half adder. As a half subtractor alsohas two outputs CH = x x y and Sn = x ⊕ y for two inputs x and yhas two outputs CH = x + y and SH = x ⊕ y for two inputs x and yis a combinational circuit Which of the statements given above is/are correct?
73393. The expression given is F(A, B, C, D, E, F, G, H) = Σ(33, 48, 102, 158, 222, 229, 233, 243, 255); then the __________ and __________ minterms are grouped together into dual and variable __________ is reduced using the dual
73399. V-I relationship of a network N is given by, V = 8 - 4I.The equivalent circuit to the network N is shown belowThe values of IN and RN are
73400. If the open-loop transfer function is a ratio of a numerator polynomial of degree 'm' and a denominator polynomial of degree 'n', then the integer (n - m) represents the number of:
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