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A 2000 microfarad capacitor, initially charged to 100 volts, is discharged by a steady current of 100 microamps. How long does it take to discharge the capacitor to 0 volts?
The exponential Fourier series coecients for a signal x(t) are: ak= { 1.57 when k=0, 0 when k is even and k doesnt equal 0, ((-1)(k-1)/2)/k when k is odd} Determine the following: (a) Plot the spectrum of the Fourier series.
Calculate the extraction efficiency (in percentage) of flat - surface LED without any encapsulation (emits directly into the air). The LED is fabricated from material with the refractive index n = 2.3.
DC-DC converter. You have 10 capacitors, each 1F. If you charge them in parallel from a 5V power supply, and then disconnect them and reconnect them in series: a. What is the equivalent capacitance seen by the power supply while charging.
Consider a Si p-n junction at room temperature. If the doping concentrations are NA=1016 cm-3 and ND=1015 cm-3, what is the depletion width also known as space charge width. Also find the maximum electric field.
A charge of 4 micro-Coulomb is applied to the surface of the car. If the car travels a distance of 2 meter between the two electrodes, and if the mass of the car is 200 grams, then what is the approximate time taken by the car to reach the second ..
A 22.5 ohm resistor is connected across a 15 V battery. What value resistor should be used to generate the same amount of heat if the power source is 283 Vp-p at 60 Hz
The probability function of the amount of soft drink in a can is f(x) = 4cx for 11.5
A three-phase 765-KV, 60-Hz,300-km,completely transposed line has the following positive-sequence impedance and admittance: z=0.0165+j0.3306 Ω/hm y=j4.674x10-6 S/km ten to the minor six
An absolute encoder is to be used for measurements that require a minimum resolution of 0.05 minute or arc. What is the number of bits required to achieve the specified resolution
A silicon sample is 85x10^-6 m in length and has a cross-section of 20x10^-6 m x 6x10^-6 m. It has been uniformly doped with Arsenic with a doping density of 4.5x10^15 cm^-3. Assume the temperature is 300K and mobilities are u_n = 1300 cm^2/Vs and..
Consider a baseband transmission channel with a bandwidth of 10MHz. Which bit rates can be supported by bipolar line code and by Manchester line code
Compare these results with the ones for analog filter and comment. Notice that the frequency response of digital filter has linear normalized frequency in [0,f] when the bode plot gives a logarithmic frequency axis of different range.
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