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8B/10B code #2
Assume that the present running disparity value of an 8B/10B encoder is +2.
a. Write the 20-bit sequence that will be transmitted if the encoder receives the bit sequence F8FF16.
b. Calculate the percentage of transitions before and after encoding.
c. Calculate the DC voltage before and after encoding.
A power amplifier has a gain of 15db and an input level of 2 volts. Assumming that the input and output impedance are the same. What is the voltage level at the amplifier output.
Point charge in a conducting shell. A point charge +q is located inside a very thin conducting spherical shell halfway between the center and the shell shown in Figure 5.46. Assume the conducting shell is at zero potential.
(a) list the minterms and maxterms of each function (b) list the minterms of ~E and then ~F (c) list the miinterms of E+F and then E.F (d) express E and then F in sum-of-minterms algebraic forms
Calculate the reactive power and the current supplied to the load and sketch a phasor diagram for this load condition, showing all circuit voltages and currents.
An angle-modulated signal with carrier frequency ωc=2πx106 is described by the equation φEM(t)=10cos(ωct + 0.1sin2000πt). a) Find the power of the modulated signal. b) Find the frequency deviation Δf. c) Find the phase deviation Δφ.
Make sure to mark significant points in your figure (amplitude, offset, time, etc.). How could a device be modified to work as an electro-optic phase modulator? If we apply signal V, what is the range of phase shifts induced by this modulator.
A random variable X is normally distributed with mean u = 10 and standard deviation sigma = 1.5. Find the following probabilities: A. P(8 or equal 8.5).
A wire is bent in the form of a half loop of radius a = 10 mm and charged with a line charge density XL = 10-9 C/m. Calculate the field intensity at center of the loop.
Common radio uses two modulation schemes - they are AM and FM.Explain very briefly what the FM scheme is. How does itdiffer from AM What are the advantages of each scheme
Find the approximate water flow in the pipe.
Write the expression for the current through the capacitor after the switch is closed. The circuit is a 60 Volt circuit
Calculate the electric field strength E1 (Newton/Coulomb) at the surface of an ellipsoid with major/minor axes of 0.3m x 0.4m x 0.4m, enclosing a charge q2 at the origin with 26.5 Coulomb. The medium is air.
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