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A client has given you an equivalent AC circuit of a sheet of glass. They need to find out how to break the glass with high frequency sound energy. The equivalent circuit contains an AC voltage source which replicates the input energy from the sound waves hitting the glass. The inductor and capacitor replicate the resonance characteristics of the glass and the resistor replicates the energy being converted by the glass as it vibrates. When the energy converted in the resistor is over 200J/s the glass can no longer support the vibration and shatters.1. Find the resonant frequency of the glass2. Find the magnitude of the voltage across the resistor required to break the glass at resonant frequency.3. Find the magnitude of voltage source required to break the glass at resonant frequency.4. Using voltage found above, find the gain in dB where gain = 20log(Vout/Vin) where Vout is across resistor vs. frequency for the points; 0.01 x wo, 0.1 x wo, wo, 10 x wo, 100 x wo (where wo is the resonant frequency).5. The clients plan to use a sound generator that is only accurate to within 20% of the desired frequency.
(a) how much sound power do they need to be sure to break the glass?
(b) find the voltage magnitude and phase shift across each component source, inductor, capacitor and resistor at worst case scenario eg (20% away from the desired frequency).
A load has a 20 ohm resistor and a 4 Henry inductor connected in series. It is connected to a power source with v(t) = 100 cos(50t), connected in series to the load. What is the impedance of the load? Use phasor transform methods to obtain your an..
An inverting amplifier With nominal gain of -20V/V employs an op amp having a dc gain of 10^4 and a unity-gain frequency of 10^6 Hz. What is the 3-dB frequency f3dB of the closed-loop amplifier
Attenuation of received power with change in transmission frequency and distance between the antennas
A strain gauge of 120O with a gauge factor 2 is used to measure the longitudinal strain developed in a cylindrical bar which has a diameter of 100mm and Young's Modulus of 5 x 1010Pa. A compressive force of 2 x 106N is applied to the bar.
Frequency multiplers are used at the transmitter to bring up the frequency level to the transmitter level frequency. Why don't we use the crystal oscillator to generate the transmitter level frequency
First draw the transmit con-stellation and the receive constellation with ideal phase tracking and sampling. Note:they are obviously the same constellations. Now, assume that receiver synchronization is off by a phase angle.
find a minimal two-level NAND realization for each of the following switching functions. a) f(A,B,C) = sum m(0,2,3,7) b) f(A,B,C,D) = sum m(0,2,8,10,14,15) c) f(A,B,C,D,E) = sum m(4,5,6,7,25,27,29,31)
A cellular radio transmitter has a power output of 3W at 800 MHz. It uses an antenna with a gain of 3 dBi. The receiver is 5 km away, with an antenna gain of 12 dBi. Suppose that the transmission line losses are 1 dB at the transmitter
The global radiation at the solar noon on a summer solstice in Albuquerque, New Mexico (latitude 35° N) is 60mw/cm^2. Assume that (a) 30 % of this irradiance is diffuse radiation and (b) the ground surrounding a PV module is non-reflecting
A 100 MHz plane wave is incident from air onto a dielectric medium ( \(\epsilon=\epsilon _{o}\) ) at normal incidence. Find the below. a. \(\Gamma \) and SWR b. \(\lambda \) in air and in dielectric c. Percentage of power density that is reflected f..
A balanced Y-connected load of 100 + j50 Ohm is connected to a balanced three-phase source. If the line current is 42 A and the source supplies 12kw, determine (a) the line voltage; (b) the phase voltage.
A wire is stretched between two posts. Another wire is stretched between two posts that are twice as far apart. The tension in the wires is the same, and they have the same mass. A transverse wave travels on the shorter wire with a speed of 281 m/..
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