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In one type of computer keyboard, each key holds a small metal plate that serves as one plate of a parallel-plate, air-filled capacitor. When the key is depressed, the plate separation decreases and the capacitance increases. Electronic circuitry detects the change in capacitance and thus detects that the key has been pressed. In one particular keyboard, the area of each metal plate is 49.0mm2 , and the separation between the plates is 0.750mm before the key is depressed.
Finding appropriate source for the electrical load, Have four circuits. One takes 9Vdc, two 5Vdc, and last one takes 12Vdc. Have variable transformer for source. How do I calculate or choose the voltage needed to run all four circuits with out blo..
A certain engine lathe can be purchased for $330,000 and depreciated over three years to a zero salvage value with the SL method. This machine will produce metal parts that will generate revenues of $220,000 (time zero dollars) per year.
Gaussian weighting following ideal, unweighted equalization is used to reduce time sidelobes seen with a 250-MHz chirp-pulse-compression radar. Rectangular chirp pulses are transmitted. (a) What is the half-power compressed-pulse
Write a short report that analyses the P&ID - Basic Neutralizer Control System: The neutralizer process may be used to adjust the pH of a feed stream.
Invesitagtion of Intermodulation through an amplifier, An amplifier is designed to handle frequencies around 9 GHz. The bandwidth of the amplifier is 2 GHz with a center frequency of 9 GHz
Hspice Netlist example, Often Netlist is generated by programs such as Cadence. However, on the rare occasions when one has to look at Hspice netlist
A recording trace r(t) is definedas r(t) = s(t) + n(t), where s(t) =10sin(20?t) (i.e., a 10 Hz sine wave, given f= 2f) is the signal and n(t) = sin(120t) (i.e., the 60 Hz electromagnetic noise) the noise.
(a) Determine a unit vector in the direction of Q at P(1, 2, 1) (b) Find the component of Q at P in the direction of PT where T is point (5, 3, -4) (c) Where is Q the same as the unit vector of \(a_{x}+11a_{y}+10a_{z}\)
The sampled signal is passed through an ideal LPF which rejects all frequencies above 8 kHz and has a gain Ts. Les sR(t) be the output of the LPF. Sketch LT[sR(t)], in which FT[] denotes the Fourier Transform, in frequency domain.
What sort of waveform does the input signal have? Is the input signal periodic or non-periodic? If the input waveform is non-periodic, what is its pulse width?
Saturated and unsaturated synchronous reactance, The following readings are taken from the results of an open- and a short-circuit test on a 9375-kVA three-phase Y-connected
Determine the voltage required on the input of the amplifier to give the maximum output of 85 dBuV. If the signal level from the aerial is 5 dBmV and the input noise level is 20 dBuV, calculate the signal-to-noise ratio on the output of the amplifi..
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