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An FM receiver has a Foster Seeley discriminator that has a transfer ratio K = 0.03v/khz. If the maximum IF deviation is 75Khz, what is the maximum output voltage of the discriminator? What is the minimum output voltage of the discriminator? When the max discriminator output volttage is fed into an audio amplifier, the amplifier drives 250 W into an 8 ohm load. What is the dB voltage gain of the audio amplifier?
constructed using standard value resistors a. Without making a single calculation, which resistive element will have the most voltage across it Which will have the least b. Which resistor will have the most impact on the total resistance.
Assume f is in $s0, the base addresses of a[] and b[] are in $t0 and $t1 respectively. Translating the following code to MIPS assembly language (You can use extra temporary registers)
A cell phone transmits voice signals on a carrier. the transmissions lie inbetween 900MHz to 900.03MHz. What minimum sampling rate should be choosen so that the transmisions will be recoverable from the digital samles
The capacitance of a capacitor formed by two parallel metal plates each 200 cm2 in area separated by a dielectric 4 mm thick is 0.0004 microfarads. A p.d. of 20,000 V is applied. Calculate (a) the total charge on the plates
a) Why is it that if the power system of interest is physically smaller than the wavelength, we can represent it as a lumped-parameter system b) Why a long wavenenth requires a gigantic antennas
Measurements on sodium have provided the following data: resistivity 4.7 ×10-8ohm m, Hall coefficient -2.5 × 10-10m3C-1, critical wavelength of transparency 210 nm, and density 971 kg m-3. Calculate (i) the density of electrons, (ii) the mobility, ..
The density of gasoline is 0.72 grams per cubic centimeter. What is the mass in units of kilograms of a 5-gallon container filled completely with gasoline Ignore the mass of the container.
Discuss why it is important to consider the Gain Bandwith Product (GBW) and the Slew Rate (SR) when selecting an op amp for a particular application. What other factors are important and why.
Assume that there is a resistance of 2.70 k in a system and there is a current of 2.2 Amps flowing thru it. How much energy is consumed by this component in 24 hours
A meter stick is found to balance at the 49.7-cm mark when placed on a fulcrum. When a 60.0-gram mass is attached at the 27.0-cm mark, the fulcrum must be moved to the 39.2-cm mark for balance.
A three phase generator is connected to a three phase load via a step up three phase transformer, a short three phase transmission line and a step down three phase transformer.
The purpose of this project is to design a device that would remotely control (from a Bluetooth-enabled mobile phone for instance) at least two actuators (e.g. relays and switches).
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