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1. With the help of Fourier transform, obtain the convolution
y(t) = x(t) * h(t)
Given:
x(t) = δ(t) - e-t u(t)
h(t) = e-2t u(t)
2. If the frequency response of a system is given as
H(j?) = ((jw))/((1+(jw) )(2+(jw)))
Obtain the time domain relationship between y(t) and x(t)
3. Determine the Laplace Transform of the following:a. 2e-t+ tb. 2Sin 3t + cos?3tc. 4e2t + 3 cosh 4t
4. What is the inverse Laplace transform of:
((s2 - 15s + 41))/((s+2) (s-3)2)
5. What is the inverse Fourier Transform of the following:
5/(6 + 5jw - w2)
the highest frequency for a message signal is 15 Hz. it AMmodulates a carrier of 500 kHz. Plot the frequency spectrum of the modulated signal. is the highest frequency component of the modulated signal just 15+500000 Hz
(a) Find the polarization state of the transmitted beam, assuming that the incident beam is linearly polarized in the y direction. (b) Show that a half-wave plate will convert right-hand circularly polarized light into left-hand circularly polariz..
can you solve the attached file??? ltbrgt ltbrgt ltbrgt ltbrgt ltbrgt ltbrgt ltbrgt ltbrgt ltbrgt ltbrgt ltbrgt ltbrgt
A power transistor for which Tjmax=180degrees Celsius can dissipate 50Watts at a case temperature of 50degrees. If it is connected to a heat sink using an insulating washer for which the thermal resistance is .6degrees Celsius/Watt
A 500kVA ,7200-240V, 60Hz, transformer with 2.2% impedance was severly damaged as a result of a dead short across secondary terminals. Determine a) The short-circuit current;
Use a chain of flip-flop to implement a shifter register
design a DC power supply with an ouput voltage of 12 v from an Ac source of120 v rms and 60 HZ. the rms ripple voltage should be limited to10% of the DC output. use a load resistance of 10 KΩ
the electric field srength E due to an infinite line of chargeis given by E = λ/(2πrεo), where λ is the charge per unit length and r is the radial distance from the wire. a, show that this formular for E still has the units of N/C.
an unknown semiconductor has eg1.1 ev and ncnv. it is doped with 1016cm3 donor atoms a determine the type of
An LED is connected to a 74LS244 in an active-LOW configuration. The key parameters for the 74Ls244 are IOH=-15 mA, IOL=20 mA, VOH =2.0V and Vol=0.5V. The LED has a voltage drop of 2.0V and an operating current of 15 mA.
Please answer those Questions : What are the issues created by short/fault current ? Mention some approaches develop more accurate system to deal with short circuit .
Express the sequence x(n)={1 n=0 , 2 n=1 , 3 n=2 , 0 else} 1- Express the signal as a sum of weighted and shifted unit impulse sequence. 2- Express the signal as a sum of weighted and shifted unit step sequence
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