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find the current that flows in a silicon bar of 10 micrometerlength having a 5 X4 micrometer cross section and having freeelectron & hole densities of 10^5/cm^3 & 10^15/cm^3 ,respectively, w
A star network with a hub, and 3 nodes: Transmission rate R=10Mbps, Frame length L=1000 bits, Cabledistances from the hub to the nodes are d1=d2=100 meters,d3=200meters. Propagation speed is the spe
NA (x) = 10^14 + 10^18exp(-10^4x), where x is measuredin cm. Use Eq. to demonstrate that the material must have a nonzero internal electric field E. What is the value of E at x=0 and x =5μm
In the pure resistive circuit the current is not not legging, while the resistor provides opposition to the flow of current. Does Current leggs behind the voltage in pure resistive circuit or not.
Write a software that programs counter 2 to generate an 80 KHz square wave if the CLK input to counter 2 is 8MHZ.
Consider an ideal 12-bit ADC with Vref=5V is used to sample a1v p-p sinusoidal signal that has a 2.5v offset. What is the boolean output if the input voltage is 3.333v
Sketch the magnitude characteristic of the transfer function H(jw)using a Bode Plot. Label all critical values and identify the typeof filter the circuit represents. use C= 1000u F, L = 10H, AND R
Every 64 cycles, the circuit outputs the average ofthe past 64 input V values, then in the next cycle begins a new calculation (in other words, its behavior repeats). During the cycles when the circ
Design an inverting op-amp circuit for which the gain is -5V/V and the total resistance used is 120kΩ
A 5.6 mF capacitor has initial voltage of 18 V.The energy stored in the capacitor is used to light up a 0.1 kOhm lamp. How much will be the lamp's power 6.7 sec after the switch has been turned on
Consider a power-output stage with voltage gain A1=1, an input signal Vs=1V, and a hum Vn of 1V. Assume that this power stage is preceded by a small-signal stage with gain A2 =100V/V and that overal
A silicon wafer is uniformly doped with 5.5 X 10^16 phosphorus atoms/cm^3 and 4.5 X 10^16 boron atoms/cm^3. a) Find the electron and hole concentrations, the electrons andhole mobilities, and the re
Sketch an AND circuit using bipolar junction transistors. Briefly explain how input combinations produce the desired output. Sketch and XOR circuit using transistors. Briefly explain how input combina
Find the magnetic field from a uniform current density J in a cylindrical conductor withits axis along the z-axis, and express it in cartesian coordinates
A 120V wye connected, 60Hz synchronous motor has a synchronous reactance of 3 ohms and an armature resistance that can be ignored. The motor draws 17 kVA at 0.8 pf leading. What is the motor armatur
A plane wave is obliquelyincident on a perfectly conducting half-space. The magnetic field is perpendicular to the plane ofincidence. The incident E has an amplitude of1V/m,and the incident angle is
A capacitor is formed by two metal parallel plates with thearea 5.1 um*um. The distance between plates is 4.3 um. The gap between plates is filled with the dielectric material with dielectric consta
A 4.8 mF capacitor has been charged to11 V. The energy storedin the capacitor is used to light up a 0.3 KOhm lamp. Find the current flowing through the lamp 2.1 sec after the switch was turned on.
The quality control department at Alexander fasteners measured the length of 100 bolts randomly selected from a specified order.The mean length was found to be 9.75 cm, and the standard deviationwas
Construct a block diagram and an ASMD chart for digital system that counts the number of people in a room. The one door through whichpeople enter the room has photocell that changes a signal x from
It is required to design an equivalent analog filter using a digital filter and other appropriate components. Thesampling frequency is fsamp= 20 kHz and the attenuation (α)specifications of th
A MEMS device has a pin that is to be drilled through the center. A camera is used to position a laser beam for this purpose. The center of the beam is to be retrieved using a threshold in gfilter on
Such an adder is called aripple-carry adder. Overflow (or underflow in subtraction) isdetected by an additional small logic circuit where the inputs areprovided by the sign bits of the input and out
The 16giga-byte (GB=2^30 bytes) flash memory chip for an MP3player is 11mm by 15mm by 1mm. This memory chip holds 20,000photos. a) How many photos fit into a cube whose sides are 1mm
Consider a coaxial transmission line that consists of inner andouter conductors of radii a and b, and is filled with an electroncloud with a volume charge density ofρv=γ/ρ[C/m3] fora&l