Electrical Engineering Answers

A piston cylinder device containing air undergoes a series of two processes. The first process is constant volume process with the pressure decreased from 300 kPaa to 60 kPaa. The second process is compression in accordance with pV1.3 =C. Determine the work done. 

1- The equation for a distance, s(m), travelled in time t(s) by an object starting with an initial velocity u(ms-1) and uniform acceleration a(ms-2) is: 𝑠=𝑢𝑡+12𝑎𝑡2 𝑒𝑞(1) The tasks are to: a) Plot a graph of distance (s) vs time (t) for the first 10s of motion if 𝑢=10𝑚𝑠−1 and 𝑎=5𝑚𝑠−2. b) Find the gradient of the graph at 𝑡=2𝑠 and 𝑡=6𝑠. c) Differentiate the equation to find the functions for i) Velocity (𝑣=𝑑𝑠𝑑𝑡) ii) Acceleration (𝑎=𝑑𝑣𝑑𝑡=𝑑2𝑠𝑑𝑡2)

Draw the logic diagram of a 2-input CMOS NAND & OR gate and explain its working in

brief.

Explain flash-type A/D converter using neat circuit diagram and discuss the main

disadvantage of this converter.

Design a synchronous sequential Mealy circuit which produces an output Z=1, whenever the following input sequence ‘0110’ appears .Assume overlapping is allowed and implement using T-FFs.

Design a Synchronous counter that goes through states 0, 5, 3, 2, 6, 0, 5, 3... using J-K Flip-Flops. The counter should count only in 3-bit Gray codes.

Q3. “There is a mechanism in which CPU relinquishes the control over the buses for carrying out various operations between memory unit and I/O unit.”Justify your answer and explain such process in detail with the help of suitable diagram.

Write a program which prints the name and lawyer of each client whose age is L or higher.

(L is age variable) 

A 234 volts three-phase source serves a balanced load consisting of three equal impedances, each of which has a resistance of 3.6 ohms and reactance of 4.8 ohms Calculate the line currents and the total power if the impedances are connected in delta.

“There is a mechanism in which CPU relinquishes the control over the buses for carrying out various operations between memory unit and I/O unit.”Justify your answer and explain such process in detail with the help of suitable diagram .