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1.)Consider the noise level table included in page 2 and thedesign equations included in pages 3 and 4 for circular and square membranes. Consider the radiusof the circular membranes limited to values ≤500 μm and square membranes with sides ≤1000 μm. Plot the corresponding thickness versus radius for (i.) rustlingleaves, (ii.) conversational speech(iii.) loudly reproduced orchestral music in a large room and(iv.) a home lawn mower.
(2.) Employ the thickness values obtained in (1.) to generate plots of maximum stress versus thickness/Radius ratio. Explicitly indicate if the membrane sreach (or exceed) the rupture stress value of silicon.
A three-phase 45 MVA, 345/34.5 kV distribution transformer is used as a step-down transformer. Determine the phase VA, Voltage, Current ratings and turns ratios of the transformer if it is connected as follows (a) Wye -delta
calculate the extraction efficiency and find the current and voltage needed to obtain the desired optical output. Once you know the current density choose Area and Find Vf that will give you the desired current density and current (If= Jf x A= Jn ..
An amplifier has an open-circuit voltage gain of 100. With a 10-KOhm load connected, the voltage gain is found to be only 80. Find the output resistance of the amplifier.
A point charge of 20nC is located at (4,-1,3), and a uniform line charge of -25 nC/m lies along the intersection of the planes x=-4 and z-6. a) calculate D at (3,-1,0). B)how much electric flux leaves the surface of a sphere of radius 5 ,centered a..
Write an optimal sequence of control microinstruction
Compare the noise floor in dBm with the GSM system (BW= 200 kHz) used by the European cell standards (available today in the US thru the AT&T acquired from the Cingular systems) assuming the same noise figure (NF) of 10 dB for the same receivers.
A square wave signal with voltage levels 0 volts and 2.0 volt at a frequency of 1.00 MHz is multiplied by a sine wave at a frequency of 5.0 MHz
An RLC circuit exists, with current flowing counter clockwise through it. R= 5.661 Ohms, L=20.2 mH, and C=157.6?F. Voltage across the capacitor is positioned so that the current meets the positive terminal first.
a. Plot the spectra of X(w) = t sinc(wt/2). Let t = 1 and -20 =
A 150 MVA, 24 kV, 125% three-phase synchronous generator supplies a large network. The network voltage is 27 kV. The generator operates with an induced voltage, which is twice the rated line-to-neutral voltage.
Explain Systematic Errors and Random Errors with suitable a case study for each error. Briefly comment on your answer based on your explanation.
A 5 KVA 480/120 V single phase transformer is to be used as an autotransformer to transform a 600 V source to a 480 V supply. As a single phase transformer delivering rated load at 0.8 PF Lag its efficiency.
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