The volumetric charge density in a cylinder with a radius of infinite length changes from the axis to ?? = ??. Here k is a constant. Find the electric field inside (r <a) and outside   (r> a) of the cylinder.

Consider a silicon crystal whose band gap energy is Eg=1.124eVE_g = 1.124 eVEg​=1.124eV and is kept at T=300KT = 300 KT=300K.

If the Fermi level, EFE_FEF​, is located at precisely the middle of the band gap, what is the probability of finding an electron (or equivalently the probability of a state being occupied) at E=EC+kBTE = E_C + k_BTE=EC​+kB​T?

1. A 350-KVA 2300  230; volt, 60-hz transformer has percent core loss, resistance and percent leakage reactance of 0.56 , 33 and 5.57 respectively. For 10 degree increments of power-factor angle, tabulate and plot percent regulation, and efficiency. Power factor for operation between 0.5 lagging and 0.5 leading.

For a single phase bridge rectifier, the source is 200Vrms/60sssHz. The load is 2000W. the winding
resistances of the transformer secondary is 0.5Ω and the forward drop resistance of each of the used
diodes is 0.2 Ω.
1. What would be the load resistance.
2. Calculate the following:
o TUF
o Rectifier power efficiency
o Rectification efficiency
o Input power factor
3. Simulate the circuit and show the following:
o Input and output voltage and current waveforms
o Diode current and voltage waveforms
4. Insert a 2?? capacitor in parallel to the output load and simulate the circuit again. Plot the
output voltage and current new waveforms. And find the new delivered power to the load from
simulation
5. Repeat part 4 but exchange the capacitor with a 0.5?? series inductor.

. Why a curved feedline will have less radiation? Explain.

Design a clipper circuit which will clip off the input above +5 V and below +2 V.

You may use any of the following components

1) Diodes with forward drop of 0.7V

2) Zener Diodes (Ideal) of any breakdown voltage

3) DC voltage source (any value)

(Please provide all steps in detail. I wish to study using them)

Compute Mathematical Analysis of 3 Phase Half wave uncontrolled AC DC rectifire using RL Load using Fourier Series of Output Voltage and filters to remove Harmonics

(9) When radiation interacts with a semiconductor resulting in stimulated emission, the

wavelength of the output radiation is (   )

(A) Half the wavelength of the incident radiation

(B) Two times the wavelength of the incident radiation

(C) May be higher or lower than that of the incident radiation, depending on the material

(D) Same as the wavelength of the incident radiation

Consider three different processors P1, P2, and P3 executing the same instruction set.

P1 has a 3 GHz clock rate and a CPI of 1.5.

P2 has a 2.5 GHz clock rate and a CPI of 1.0.

P3 has a 4.0 GHz clock rate and has a CPI of 2.2.

a. Which processor has the highest performance expressed in instructions per second?

b. If the processors each execute a program in 10 seconds, find the number of cycles and the number of instructions.

c. We are trying to reduce the execution time by 30%, but this leads to an increase of 20% in the CPI. What clock rate should we have to get this time reduction?

A 50Ω lossless line is to be matched to an antenna with Zload = (100+j50)Ω using a shorted stub.

Use the Smith chart to determine the stub length and distance between the antenna and stub

what is the main parts of an alternator and the function of each part ?