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Design the circuit that interfaces a 2.5V 1mA LED to YourComputer. If a system uses a 12-bit ADC, about how many decimal digits will it have If a system requires decimal digits of precision, what is t
Two loads connected in parallel are supplied from a single-phase 240-V rms source. The two loads draw a total real power of 400kw at a power factor 0f 0.8 lagging. One of the loads draws 120kW at a
The Brilliant Box Company makes corrugated boxes. The strength of the boxes is a vital quality characteristic. Box strength is measured by its stiffness level. The process operates two shifts and pr
Consider the current it takes to power a +5V 74xx245(Icc). What is the qualitative difference between the CMOS devices and the non-CMOS devices and the non-CMOS devices What is the explanation for t
A 2000 microfarad capacitor, initially charged to 100 volts, is discharged by a steady current of 100 microamps. How long does it take to discharge the capacitor to 0 volts
A car travels at 30 km/hour. The diameter of the tire is 50 cm. How many shots of the tire must be taken to correctly capture the motion of the wheels
Nominally, the short lead of the diode is the cathode, i.e., the negative lead. However, you can identify the cathode more reliably by noting that one side of the LED's housing has a at spot at the
If the frequency of a signal is 120 Hz and the sampling frequency is 150 Hz, what is the aliased frequency of the signal
Our third word problem case study described a logical "function unit" that computed the eight combinational functions of the inputs A and B: constant 1, A OR B, A NAND B, A XOR B, A XNOR B, A AND B,
Given a d'Arsonval meter movement with a full scale (FS) current of 50mA and a resistance of 2ohms, determine the value of the shunt that should be used to construct an ammeter (AM) with a sensitivi
A 9-V flashlight battery has a rating of 1.8kWh. If the bulb draws a current of 100mA when lit; determine the following: a)For how long with the flashlight provide illumination b)How much energy in jo
Given x1(t)=cos(t), x2(t)=sign(pt) and x3(t)=x1(t)+x2(t). (a) Determine the fundamentals periods T1and T2 of signals x1(t) and x2(t). (b) Show that x3(t) is not periodic, which requires T3=k1T1=k2T2 f
The densities of diamond and germanium are 3.52g/cm3 and 5.32g/cm3 respectively. Estimate the number of atoms per unit volume, nearest neighbor distance, and lattice constant for diamond and Ge.
A charge Q is uniformly distributed over the wall of a circular tube of radius b and height h. Determine V and E on its axis at a point outside the box.
The Power Consumption of a single-phase electric load fed from a 120 V source is represented by: P(t) = 100(1- e -t/10 ) KW where t is the unit of time in hours. Compute the energy consumed by the l
A certain 15 V dry-cell battery, completely discharged, requires a current of 100 mA for 3 hr to completely recharge. What is the energy storage capacity of the battery, assuming the voltage does no
A particular op-amp, characterized by a gain-bandwidth product of 20MHz, is operated with a closed loop gain of 100. What is the 3-db bandwidth? At what frequency the closed loop amplifier exhibits
If a transformer with N(p) and N(s) turns in its primary and secondary, respectively, is placed between the source and the resistor (primary facing voltage source, secondary facing resistor), what i
find the force between a charged circular loop of radius b and uniform charge density P l and a point charge Q located on the loop axis at a distance h from the plane of the loop. What is the
A circuit has a Thevenin equivalent circuit consisting of a voltage source of 10 V and an output resistance of 20 O. A non-ideal voltmeter is used to measure the source voltage. What will be the mea
the average telephone is used to make four calls per 8hour workday with a mean call duration of 6 min. Ten percent of the calls are long distance. what is the maximum number of telephones an end off
A 50 (ohm) lossless transmission line is terminated in a load with impedance Z= (30-j50) ohm. the wavelength is 8cm. Determine: (a) reflection coefficient (solved: 0.1 - j0.56 or 0.56 angle -79.9)
A tidal energy system has an average tidal range of 5 m and a basin area of 21.5km^2. The system is designed to generate power during both incoming and outgoing tides. The seawater density 1025kg/m^
The work function of platinum is 4.09ev what retarding potential will be required to reduce the photocurrent to zero in a photoelectric experiment with Pt electrodes if the wavelength of the inciden
A material with a bulk resistivity of p = 120 Om is to be used to manufacture a 75 kO resistor that must dissipate P = 80 W of power. The maximum allowable current density for this material is J = 1