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In AM, spectal overlap is said to occur if the lower sideband forpositive frequencies overlaps with its image for negativefrequencies. what condition must the modulated wave satisfy if weare to avoid spectral overlap? Assume that the message signal m(t)is of a low-pass kind with bandwidth W.
A 2-pole, 3 phase (PMAC) brushless-dc motor drive with a torque constant Kt and the voltage constant Ke being 0.5 in MKS units and the synchronous inductance is 15 mH and supplying a torque load TL of 5 Nm at speed of 5,000 rpm
All the script needs to do is make a two 10 by 10 grids, one for the user, one for the computer. Allow the user to choose where to place their ships, and in which direction. Then have the computer randomly place its ships.
e) What is the value of C such that the energy stored in the capacitor equals the energy stored in the inductor f) How much energy is stored in the 3.9?F capacitor Use the formula for the energy. g) What is the power dissipated in the resistors
Let x[n], y[n] and w[n] denote three finite-lenght sequences of lenghts N, M, and L, respectively with the first sample of each sequence occuring at n=0. What is the lenght of the sequence x[n] * y[n] * w[n]
Consider a signal g(t) which is the time-reversed real signal f(t), so g(t) = f(-t). Let g(t) have Fourier series coecients, cn. How are the Fourier series coefficients, cn and dn related
A 120 Veff motor draws 1.5 kVA at a lagging power factor of .85. Determine the size of the capacitor that must be placed in parallel with the motor for a power factor of 1.
If you have 16 kibibytes of memory plus a few (less than 10) memory mapped devices (assume that each device uses 16 bytes of address space), what should the address size be
A device moves 120 coulombs of charge from point a to b in 8 seconds. the distance between a and b is 6 cm. the energy expended in moving the charge is 600 Ws. calculate the voltage between a and b.
Electrostatic scaling: prove that electrostatic force between the two plates of a charged capacitor is a surface force (~L2); How about the stored energy under constant voltage on the capacitor (~L1, ~L2, or ~L3)
The machine takes three inputs in addition to the clock: countup, countdown, reset. The count advances by 1 when countup=1, decreases by 1 when countdown=1, and goes to 0 when reset=1. The output o1=1 when the count reaches 3.
a) Express the s-domain impedance of this series combination as a rational function, b) Give the numerical value of the poles and zeros of the impedance and verify your calculation by matlab.
(a) determine the contact resistor that can go on the base if the length of the contact is 10 * Wb. (b) Plot the change in conductance in relation to varying the doping from 1014/cm3 to 1018/cm3 at room temperature. Redo the graph at 77K;
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