SOLVE USING MATLAB INCLUDING CODES!!!!

A DC shunt motor has a full load rating of 15 hp, 230 V, 57.1 A, 1400 rpm. The armature circuit resistance is 0.13 Ω and the field circuit resistance is 115 Ω. Neglecting the armature reaction, determine the no-load line current.

Refer to figure 4 and the results obtained in Table 1 and answer the following questions:

1. Are R4 and R6 in parallel or in series? Why? Refer to voltage current measurements for your answer to justify.

2. Are R3 and R4 in parallel or in series? Why? Justify.

3. Are Vs and R3 in parallel or in series? Why? Justify.

4. Are Vs and R6 in series or in parallel? Why? Justify.

5. Are Vs and Req in parallel or in series? Why? Justify.

6. Is VDR applicable for R3 and R4? Why? Justify your answer on the basis of theory given in the introduction.

7. Is CDR applicable for R4 and R6? Why? Justify your answer on the basis of theory given in the introduction.

8. Is the parallel combination of R4 and R6 in series or in parallel with R2? Why? Justify.
Refer to figure 4 and the results obtained in Table 2 and answer the following questions:
9. Are R4 and R6 in parallel or in series? Why? Refer to voltage current measurements for your answer to justify.

10. Are R3 and R4 in parallel or in series? Why? Justify.

11. Are Vs and R3 in parallel or in series? Why? Justify.

12. Are Vs and R6 in series or in parallel? Why? Justify.

13. Are Vs and Req in parallel or in series? Why? Justify.

14. Is VDR applicable for R3 and R4? Why? Justify your answer on the basis of theory given in the introduction.

15. Is CDR applicable for R4 and R6? Why? Justify your answer on the basis of theory given in the introduction.

16. Is the parallel combination of R4 and R6 in series or in parallel with R2? Why? Justify.

Any other observations or comments:

incoming freshmen are given entrance examination in a number of fields including English. Over a period of years, it has been found that the average score in English examination is 80 with standard deviation of 7.8. An English instructor examines the scores from his class of 40 and finds their average in 85. Can the instructor claim the average scores has increased at 0.05 level of significance?

Critical value?

Computed Value?

conclusion?

Air is enclosed in a 6-cm diameter vertically sliding piston in a cylinder. The pressure and temperature of the air in the cylinder is 2 bar and 30oC. The pressure in the cylinder is resisted by spring acting on the top surface of the piston. The height of the piston above the base of the cylinder is 4 cm. The air enclosed below the piston is heated until the piston has moved to a height of 8 cm above the base. The spring constant is 5 kN/m. Assume that the weight of the piston is negligible. With the aid of a schematic diagram, determine: a. The work done by spring, b. The work done by atmosphere, c. The final temperature of air, d. The total heat transfer during the process, and e. The total work done during the process.

Air is enclosed in a 6-cm diameter vertically sliding piston in a cylinder. The pressure and temperature of the air in the cylinder is 2 bar and 30oC. The pressure in the cylinder is resisted by spring acting on the top surface of the piston. The height of the piston above the base of the cylinder is 4 cm. The air enclosed below the piston is heated until the piston has moved to a height of 8 cm above the base. The spring constant is 5 kN/m. Assume that the weight of the piston is negligible. With the aid of a schematic diagram, determine: a. The work done by spring, b. The work done by atmosphere, c. The final temperature of air, d. The total heat transfer during the process, and e. The total work done during the process.

Determine V1 and V2 in the circuit shown in Figure 1 using Nodal Analysis method.

Atty Ulah is a volunteer in the National Labor Desk of the country. She does it out of commitment to help those who can not afford legal assistance. She comes to the office every 4:00 pm and stays there for 2 hrs daily. She has won so many labor cases and all of them are pro bono ( free ). Later on, the National Labor Desk made her stint in the office officially. That is, Atty Ulah has been employed as a part lawyer to attend to the labor cases. However, while she is now getting paid for her services, she does not feel the same as when she was just a volunteer.

Questions:

1. How would you explain what Atty Ulah is experiencing? ( 5 pts)

2. What motivation theory can explain how she is experiencing? ( 5 pts)