5.1 Sketch the energy band diagram for an n-type MOS-C under accumulation bias conditions and sketch the energy band diagram for an n-type MOS-C under depletion bias conditions.

Describe briefly the four (4 ) control methods of the contaminants (pollutants)

Explain why the positive sequence impedance of a transmission line and transformer is the same as the negative sequence impedance but is different from the zero sequence impedance.

Assume that you are using a piezoelectric material to build a micro/MEMS actuator beam in order to pick up a red-blood cell (with mass of ~1picogram or 10-12grams). If the dimensions of this actuator beam are length=100µm, width=10μm, and thickness=1μm, what is the minimal voltage you need to apply to this piezoelectric actuator in order to pick up the red-blood cell? Please write down all your assumptions used to estimate the voltage required.

Build a circuit for arcade game. You have 3 LEDS and 1 button.
the LEDs should recycle through 000,100,110,111,011, 001(back to 000).
The user needs to hit the button during the 111 cycle 3 times in a row to win.
The win is shown as an LED which is HIGH if the user won the last attempt of 3 presses.
The win LED will be LOW otherwise

Demonstrate with simple examples on under-sampling and over-sampling effects. Give exact parameters and data in your demonstrating example. Explain in terms of sampling theorem, Nyquist rate, low pass filter effect.

An ideal chopper (buck) operates at a frequency of 500 Hz. It is supplied from a dc source E = 60 V. The load consists of a 3-Ohm and the inductance is 9 mH. Assume the diode is ideal and the battery is lossless. Assume periodic steady state and CCM. Chopper which is Buck which is a step down converter

A) Draw the circuit diagram

B) Derive the expression for the load current, i0(t)

C) For tON/tOFF = 1/1, calculate and draw the current waveform and calculate the mean load voltage and current

D) For tON/tOFF = 4/1, calculate and draw the current waveform and calculate the mean load voltage and current

write a coclusion for below statement

In summary, a typical Emitter Amplifier, the input is connected to the B-E junction, and the output from the EC terminal is taken. As it provides good current Gain and good voltage gain, it is commonly used as an amplifier circuit and is also known as an inverter amplifier as it gives 180 ° phase shift from input to output. First, when a bypass capacitor is attached, a common-emitter BJT amplifier with a voltage divider biasing configuration may cause a massive fall in voltage gain. Some of the formulae were used to calculate the voltage gain with a voltage divider biasing configuration of the common- emitter BJT amplifier.( ElProCus.2020)

There is a small difference between simulation and practical measurements. Due to the tolerance values of components, simulation results are not the same practical measurements. The maximum symmetrical swing is the maximum peak to peak output voltage, which is not clipped of saturated. The purpose of DC analysis is to bias the circuit in a fixed and stable operating point known as Qpoint. The purpose of AC analysis is to analyze the small-signal parameters such as voltage gain, current gain, and input impedance.

By default, the effect on the voltage gain if β value is significant, then the voltage gain is more since gain depends on gm, which itself depends on IC, gm=I_C/V_T. Based on the equation, I_C= βI_B. Suppose β is large, then IC also large. So gm is more. So the voltage gain is more.

Similarly, if the β value is small, then the voltage gain is less. Compared to the voltage gain when B is significant. In the CE amplifier, the output voltage is 180⁰ out of phase with respect to the input voltage. Therefore phase inversion takes place in the CE amplifier between input and output. By removing the CE capacitor, it gives rise to higher input impedance, much less distortion in the output, a higher bias point stability, and the gain is reduced.( Electronics Hub. 2020)

Given H = (3R^2/ sin θ) aθ + 54 R cos θ aφ A/m (a) Find J.

(b) Find the total current in the aθ direction through the conical surface θ = 20◦, 0 ≤ φ ≤ 2π, 0 ≤ R ≤ 5

Please explain (b) thoroughly.

a) Briefly describe TWO (2) types of stepper motor that are commonly used.

b) A linear induction motor drives a conveyor belt at speed of 50 km/h with a slip of 20% at 50 Hz and developed a thrust of 300 N. Determine:

i) Pole pitch of the motor.

ii) Power developed by the motor.

iii) Copper loss in the secondary side.

iv) The new value of synchronous speed if pole pitch is increase to 0.5 m.

What is a ripple counter? How is it constructed using D flip-flops?

In audio processing (e.g., PyAudio), when and how is the frame rate different than the sampling rate?

- What is the precise meaning of WIDTH in the following Python code? What values are usually used for WIDTH? Why?

wf = wave.open(file_name, 'w')

wf.setsampwidth(WIDTH)

I have this MIPS code and I need to find:

add f,g,h

add f,f,i

sub f,f,j

a. How many bits does it take to encode ?

b. How many bits needed in register file to store the data?

List and briefly characterize the requirements for power protection devices and systems. Which of the requirements do you think are the most important?

If we want to pattern thick film (i.e. metal Ni, 3 micrometer) on a 4 inch Si wafer by electrochemical deposition, please give a possible sketch for the deposition, and comment deposition parameters for the process.