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(a) A student would like to find the relative dielectricconstant of a non-magnetic medium. He transmitted a plane EM waveat 10GHz inside the medium and found that the propagating wave hasa wavelengt
A uniform plane wave in a lossy medium has a phase constant of1.6 rad/m at 10MHz and its magnitude is reduced by 60% for every 2m traveled. (a) How much attenuation will the wave suffer indB/m
You are designing a general purpose integrated circuit oscillator that will operate at various frequencies, based on the external reactances the user supplies. You expect that the IC will be used a
Design a CMOS inverter taht has parameters Voh=12V, Vol˜0, and Vic=4V, where Vic is the cross over voltage. Specify Vtr, W,and L for each of the MOSFETs for a minimum line width of 1.5 μm.
If a constant current load draws 1 nA from the capacitor, how long does it taketo completely discharge the capacitor. Draw the voltage of the capacitor as a function of timeduring this discharge proce
A PCM-TDM system multiplexes 32 voice band channels each with a bandwidth of 0-4kHz. Each sample is encoded with an 8-bit PCM code. UPNRZ encoding is used.
A voltage source is in series with a 1 MΩ resistor and a100 picofarad capacitor. The voltage source is 10cos(2π*10^3t - π/6). What is the voltage across the capacitor
Consider a point to point link needs a beam which is directed asclose as possible to the other antenna. This will minimizeinterference between different communications systems, as well asmaximizing
The total complex power delivered to the Y-connected 3-phase balanced load is 1152+j864 KVA. The line voltage at the terminal ofthe load is 4160V. a) Find the magnitude of the line current feeding t
The filter is to have less than 1 dB ripple in the passband compared to the response at DC. The passband is to extend to at least 16 kHz. In addition, the stopband attenuation is to be at least 65
Create a Line class using the coefficients a, b and c of the equation ax + by + c = 0 that represents the line as the class fields. Enforce the class invariant that either a or b is non-zero and c i
The iron section was attached to the ceiling while the steel section was placed on a horizontal support so that 1-mm airgaps were left between the sections. The mass density of steel is7.8 g/cm3. Th
An npn BJT operating with its base-emitter junction forward biased, its base-collector junction reversed biased, and negligiblehole-electron recombination in the base has an emitter current composed
A pn junction diode and the base-emitter junction of an npn BJT have the same physical structure and doping level. The twoare connected in parallel and energized to the same voltage. If the diode cu
You are designing a general purpose integrated circuit oscillator that will operate at various frequencies, based on the external reactancesthe user supplies. You expect that the IC will be used as
In addition, the stopbandattenuation is to be at least 65 dB, starting at the Nyquistfrequency of 22.05 kHz. The complexity of the filter shouldbe minimized. Sketch the filter specification (amplitu
Determine the magnitude of the impedance in ohms for a 70mH inductor in series with a 15 ohm resistor. The frequency of excitation is 650 rad/s.
Draw the logic diagram to implement the following functions using AND and OR gates. Form a truth table for each and show the outputstate for each possible input combinations (notice that there are16
Digital circuits are not really digital. They areactually analog circuits that are designed to approximate digital functions. i) Explain why digital circuits must allow for a range of analog values i
To avoid changing amplitude scales onthe oscilloscope during the demonstration, suppose that you wantthe resistor voltage (in both circuits), the capacitor voltage, andthe inductor voltage to have t
x[n] is the input sequenceapplied to a digital filter whose impulse response h[n] is alsogiven below. Find the resulting output sequence,y[n]. Hint: There's a VERY easy way to solve thisproblem, and
A uniformly doped n-type silicon bar doped ND =1016/cm3 of length L is illuminated to create1011/cm3 excess electron-hole pairs at x=0.The illumination wavelength does not allow the light to penetrat
an amplifier with a low-frequency gain of 100 and poles at 10^4 rad/s and 10^6 rad/s is incorporated in a negative-feedback loop with feedback factors B. For what values of B do the poles of the cl
A box contains resistors whose values are independent and areuniformly distributed between 100 and 120 ohms. If two resistorsare selected at random and connected in series, find a. the most probable
The train's departure time from the station is also a random variable that is uniformly distributed between 8:00 am and 8:10 am. a. Find the probability density function of the time interval between