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given the electron and hole concentrations for a 2 micro meter region of Silicon. At x=0 the concentration of electrons is 10^16 and the concentration of holes is 1.01x10^18. At x=2 micro meters the concentration of electrons is 10^4 and the concentrations of holes is 10^18. This information was given in a picture. In addition, there is a constant electric field of 20 V/cm present in the sample.
What is the total current density at x=0? What are the individual drift and diffusion components of the hole and electron current densities at x=1 micro meter? Assume the electron and hole mobilities are 350 and 150 cm^2/Vxs , respectively.
3)What factors started the decline in the nuclear power industry, and what events essentially ended new construction of nuclear power plant 4)What are three advantages of using AC power over using DC power
Construct a table showing the current for values of time between 0 and 9 hours at intervals of 1 hour.Hence draw a graph of i against t for 0 is smaller or equal to t is smaller or equal 9.(cannot type in proper inequality symbols)
Determine the relative permittivity of the dielectric, the maximum and minimum electric field intensities in medium 1 and the electric field intensity in medium 2.
If the total power amplification through the receiver stages is G_R find the output power of the receiver. If the noise power at the output is identical to the noise power at the input of the receiver, find the NF for the receiver.
A series-parallel circuit contains both series and parallel connections in different arrangements. Do you find it useful to isolate the parallel sections and calculate their resistance first
A three-phase delta connected load has a phase resistance of 15 ohms and a phase reactance of 17 ohms when connected to a 480VAC 60HZ line. What is the phase impedance, phase current power factor, and total power delivered to the load
How much stator referred „external? resistance per phase should be connected in the rotor
At what forward voltage does a diode conduct a current equal to 1000 Is. In terms of Is, what current flows through the same diode when its forward voltage is 0.7V.
1) What is the dynamic range for an 8-bit ADC 2) A device that responds to a small current or voltage change by activating a mechanical switch allowing a larger amount of current flow is a: a) transistor. b) transducer. c) solenoid. d) relay.
What is the equivalent input noise resistance of an amplifier known to produce 20 V of equivalent input noise over a bandwidth of 750 kHz
under insolation conditions 500 W/m^2 (direct sunlight), and 10% solar cell efficiency, calculate the area required for a photovoltaic array capable of running an electric vehicle driven by a single 40 hp motor for 3 hours at half power
An AC synchronous motor operates at 1200 rpm on a 60 hz, 240 Vrms supply. The supply is changed to 50 hz, 240 Vrms, What is the mechanical rotational velocity when the motor reaches steady state
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