73101. For a series resonant circuit at low frequency circuit impedance is __________ and at high frequency circuit impedance is __________ Fill in the blanks respectively
73102. The network is
73103. 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 minimum sampling rate is :
73104. The circuit below represents function X(A, B, C, D) as:
73105. If the characteristic equation of a closed loop system is s2 + 2s + 2, then the system is :
73106. Given digits 2, 2, 3, 3, 3, 4, 4, 4, 4 how many distinct 4 digit numbers greater than 3000 can be formed?
73108. The following circuit can be represented as :
73109. Find Y in the circuit below :f1(E, F) = ∑(0, 1, 2, 3)f2(A, B, E, F) = ∑(0, 1, 2, 3, 5, 6, 9)f3(A, B, E, F) = ∏(4, 7, 8, 10, 11, 12, 13, 14, 15)
73110. Calculate the stability factor and change in Ic from 25°C to 100°C for, β = 50, RB/RE = 250, ΔICO = 19.9 nA for emitter bias configuration
73111. In a radar system, the range of R1 is achieved at a frequency f1. Then the range R2 at frequency R2 = 8f1 would be __________ [Neglect effect of 1 on the Beam width.]
73112. The logic function f(A, B, C) = m(0, 2, 4, 5, 6) can be represented by :
73113. In amplitude modulation, carrier signals A cos ωt has its amplitude A modulated in proportion with message bearing (low frequency) signal m(t). The magnitude of m(t) is chosen to be __________ .
73114. For real values of x, the minimum value of the function f(x) exp (x) + exp (- x) is
73115. Continuity equation is based on law of conservation of
73116. An image uses 512 x 512 picture elements. Each of the picture elements can take any of the 8 distinguishable intensity levels. The maximum entropy in the above image will be
73117. A tachometer has a sensitivity of 4 V/1000 rpm. Express the gain constant of the tachometer in the units volts/(rad/sec).
73118. Consider the signal x(n) = 1 + sinn + 3 cosn + cos . Then Fourier series coefficients are __________ .
73119. A certain system has transfer function a is a parameter. Consider the standard negative unity feedback configuration as shown below.Which of the following statements is true?
73120. If a signal f(t) has energy E, the energy of the signal f(2t) is equal to __________ .
73121. For a npn BJT transistor fβ is 1.64 x 108 Hz. Cμ = 10-14 F; Cp = 4 x 10-13 F and DC current gain is 90. Find fT and gm (fβ = cut off frequency, Cμ = capacitance, Cp = parasitic capacitance, gm = transconductance, fT = gain BW product)
73122. The impulse response h(t) of a linear time-invariant continuous time system is described by h(t) = exp (a t) u(t) + exp (βt) u (- t), where u(t) denotes the unit step function, and a and β are constants. This system is stable if
73123. ωL =
73124. An 8 level encoding scheme is used in a PCM system of 10 kHz channel BW. The channel capacity is
73125. For the power amplifier circuit shown below, the maximum power dissipated by both output transistor is
73126. For static electric and magnetic fields in an homogenous source-free medium, which of the following represents the correct form of Maxwell's equations?
73127. A periodic rectangular signal, x(t) has the waveform shown in the given figure. Frequency of the fifth harmonic of its spectrum is __________
73128. An antisymmetric filter having odd number of coefficient may have a performance as
73129. A material has conductivity of 105 mho/m and permeability of 4p x 10-7 H/m. The skin depth at 9 GHz is
73130. The steady state error of a stable type 0 unity feedback system for a unit step function is :
73131. Find RTH across the terminals A and B
73132. Find Y- parameters
73133. For a second-order system with the closed-loop transfer function The settling time for 2-percent band, in seconds, is :
73134. An open loop transfer function is given by has
73135. The current i(t) through a 10 Ω resistor in series with an inductance is given by i(t) = 3 + 4 sin (100t + 45°) + 4 sin (300t + 60°) Amperes. The RMS value of the current and the power dissipated in the circuit are
73136. The cut off voltage for JFET is 5 V. The pinch off voltage is __________ .
73137. Assertion (A): Conductors do not permit propagation of waves more than a short distance into the conductor at microwave frequencies.Reason (R): The relaxation time constant for conductors is much small than the period of centimetric EM wave.
73138. The circuit given below is:
73139. Rank of the matrix:
73140. His rather casual remarks on politics __________ his lack of seriousness about the subject.
73141. The resolution of a 4 bit counting ADC is 0.5 volts. For an analog input of 6.6 volts, the digital output of the ADC will be
73142. Which of the following is used the measure discharge?
73143. The maximum percent overshoot with maximum value of first overshoot as 3.5 V and steady state value as 2.575 V is
73144. Find Vo(t) for the following circuit.Data: L = 1 H, C = 1 F, R1 = R2 = 1 Ω and zero initial conditions.
73145. An XOR gate with 8 variable is as follows: A ⊕ B ⊕ C ⊕ D ⊕ E ⊕ F ⊕ G ⊕ HThe number of minterms in the Boolean expression is
73146. The figure shown below is designed to act as a constant current source across the load resistor. The β of transistor is 50. What is the value of load current?
73147. For a given magnetic material operating in linear mode B = 0.06 T. Assume permeability = 51, then magnetization is:
73148. Let f(A, B) = A ⊕ B; then the simplified form of the function f(f(x ⊕ y, z)w) is
73149. A system has 12 poles or 2 zeros. Its high frequency asymptote in its magnitude plot has slope of
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