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State the factors that affect the capacitance of a parallel plate capacitor, and explain how the variation of each of these factors affects the capacitance. Calculate the value of a two plate capacitor with a mica dielectric of relative permittivity 5 and thickness 0.2 mm. The effective area of the plates is 250 cm2.
Focus on a single cell first and assume a background noise power of N0. Is the system interference-limited under the SIC receiver? Was it interference-limited under the conventional CDMA receiver?
An AM signal has an unmodulated carrier voltage VC = 10VP, a load resistance of RL = 10, and a modulation index of m = 1. Determine Write down the frequency components of the received AM signal.
A tennis ball, having a mass of 50 g, travels with a velocity of 200 km/h. What is the equivalent wavelength of this "particle"? Compare your result with that obtained in Problem I above and discuss the difference.
a- for this modulator a 1-v signal produces a deviation of 20Khz determine the amplitude and phase spectra of s(t) for the modulating signal m(t) = 1.5 cos(2*pi*6*10^4*t) when fc>>fm b- find the bandwidth of the modulated signal using carson's rule..
Consider a bank of three single-phase two-winding transformer whose high-voltage terminals are connected to a three-phase, 13.8 kV feeder. The low-voltage terminals are connected to a three-phase substation load rated 2.4 MVA and 2.3 kV.
A cellular operator using the FDMA technique is allocated a total spectrum of 25 MHz. The system has a channel bandwidth of 60 kHz. It also uses a guard band of 20 kHz. Compute the number of channels that can be simultaneously supported in this wi..
Develop a comparator circuit that takes two 2-bit operands (A and B, or A1 A0 and B1 B0) and gives a single bit output if A>B. Show the truth table for the circuit, K-map, and the circuit implementation. How would you extend your solution to build..
Design an alarm circuit to be used in a process control system. Temperature (T), pressure (P), flow (F), and level (L) of a fluid are each monitored by separate sensor circuits that produce a high logic output signal when the following indicated p..
Determine the frequency response with respect to noise input Γ2 and compare its magnitude to that of the open loop system in equation (5.2).
Supporting Activities: Introduction to Modems
For this diffusion length, at what distance from the depletion-region edge will the excess hole density reach 10% of its value there?
How does the technique of successive solution of Maxwell's equations reveal the interaction between the electric and magnetic fields giving rise to wave propagation?
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