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A mobile telelphone system (MTS) has 10 channels operating at 30 Khz with a max 80 kilometer range. What is the spectral efficency in users per Khz per kilometer^2?
Determine the output voltage of an op-amp for input voltages of Vi1=200uV at Vi2=140uV. The amplifier has a differential gain of Ad=6000 and the value of CMRR is A. 200 b. 10^5
For the grounded gate p-pullup pseudo NMOS circuit shown below assume the load capacitor, CL, is initially discharged, and that the input voltage abruptly drops from Vdd to zero. Derive the equation for the output voltage charging behavior.
a) An Si p+-n junction has A=1/100 cm^2 and N(donor)=10^15/cm^3 on the n side. Calculate junction capacitance with reverse bias of 10V. b) An abrupt p+-n junction is formed in Si with donor doping of Nd=10^15 / cm^3.
Design a full-wave bridge rectifier circuit to deliver 10 volts de with less than 0.1 volt (pp) ripple into a load draWing up to 10mA. Choose the appropriate ac input voltage. assuming 0.6 volt diode drops.
A hybrid communication system uses both AMSC and FM. The information signal a(t) is first AMSC modulated with the subcarrier frequency 1000 Hz. Then it passes through an FM modulator with the carrier frequency 10Mhz.
A Si sample is doped with 106cm-3 boron atomsand a certain number of shallow donors. The Fermi level is.36eV above Ei at 300K. What is the donor concentration Nd
If designing a computer configuration for use as a workstation for one specific application, what aspects of the software need to be considered as part of the design process?
Market research and a competitive analysis are typically used in order to determine the feasibility of a new technology. How you could use advanced market research in order to remain competitive
A 120V, 60Hz AC induction motor is in parallel with a power factor correction capacitor. The capactior has a value of 50 micro Farads and produces a minimum line current of 2 ohms. Determine the running impedance of the motor in cartesian coordina..
A complex number with a phase between 90° and 180°(in the 2nd quadrant) is added to a second complexnumber with a phase between -90° and -180° (inthe 3rd quadrant). What is the sign of the realpart of this sum
Find the appropriate subchannel modulation format (note: the number of constellation points in the modulation mapping scheme should be the power of two).
Design an analog computer circuit (using minimum resistor values of 10 k ohms ) to obtain the summing (adder) function. Vo = -v1 -v2 +v3
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