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Two infinite sheets of charge lie parallel to each other, separatedby a distance d. The upper and lower sheets have surfacecharge densities ρsa andρsb[C/m2], respectively. find the voltage Vab from the top to the bottom surface.
a.Sketch the circuit diagram, the impedance diagram and the phasor diagram; take the supply voltage V as the reference phasor. b. Calculate the magnitude of the voltage V2 across the second impedance. c. Calculate the magnitude of the voltage V3 acro..
The analog signal cos (200t) is digitized using a sampling frequency of 300 Hz, and a quantization of 8 bits per sample. How many bits will be used to store 2 minutes of the digital signal
A 160-ft-diameter parabolic antenna is driven by a 10-W transmitter at 4.3 GHz. Calculate its effective radiated power (ERP) and its beamwidth.
Many multiprocessors distinguish between a cache block that is really shared and one that exists in the clean state in exactly one cache. The addition of a "clean and private" state eliminates the need to generate a bus transaction on a write to s..
An 80 kHz sinusoidal voltage has zero phase angle and a maximum amplitude of 25 mV. When this voltage is applied across the terminals of a capacitor, the steady-state current has a maximun ampliture of 628.32 uA
What is the maximum power dissipated in the load when the Thévenin voltage is 21 V cos(52 rad/s t + 82°), the Thévenin impedance is 102 -j 184 ohm and the load impedance is 102 + j 184 ohm
A voltage divider can provide a voltage at its output, but it cannot provide current. If a device is connected to the output of a voltage divider, what value of resistance should it have
A flyback converter is to be designed to provide 10V at 18A from a smooth 200V source. Isolation between the input and output is required. The switching frequency is 200kHz and the duty cycle is 0.4.
For a particular IC-fabrication process, the transconductance parameter kn'=400 micro amps/v^2 and vt=0.4V. In an application in which Vga=Vds=Vsupply=1.8, a drain current of 2mA is required of a device of minimum length of 0.18um.
he real power delivered by a source to two impedances, Z1=3+j4 ohm and Z2=10 ohm, connected in parallel, is 1100 W. Determine (a) the real power absorbed by each of the impedances and (b) the source current.
Male frogs give calls that attract female frogs to approach and mate. Researchers examined mating calls of closely related tree frogs in South America. If reinforcement of postzygotic isolation is occurring
Three Single-Phase two-winding transformers, each rated 25 MVA, 38.1/3.81 kV, are connected to form a three-phase Wye-Delta bank with a balanced Y-connected resistive load of 0.6 ohms per phase on the low-voltage side.
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