Course Teacher Md. Shamim Sarker Amit Kumer Podder

1. Course No. : EEE 1206 Credits: 0.75 Course Teacher Md. ShamimSarker Amit KumerPodder Department of Mechanical Engineering (ME) Khulna University of Engineering & Technology (KUET)

2. List of Experiments

3. Today’s Experiment Exp. No. : 01 Name of the Experiment: Familiarization with some electric equipment’s and measurement of voltage, current, power for both AC and DC supply.

4. AC Alternating current describes the flow of charge that changes direction periodically.

5. DC Direct current (DC) is the unidirectional flow of electric charge. Direct current is produced by sources such as batteries, power supplies, thermocouples, solar cells, or dynamos

6. Task!!!!!! How can you measure these AC or DC voltage or Current???

7. Commonly used Electric Meters • Ammeter • Voltmeter • Wattmeter AVO meter, Commercially called Multimeter

8. Ammeter An ammeter is a measuring instrument used to measure the electrical current in a circuit. Electric currents are measured in amperes (A). Types: 1. DC Ammeter 2. AC Ammeter

9. Schematic Diagram of Ammeter: Ammeter Should always be connected in Series with Load

10. Pictorial View of DC & AC Ammeter DC Ammeter AC Ammeter

11. Voltmeter • Used to measure Electrical potential difference between two points in an electric circuit. Voltage are measured are Volt (V). Types: 1. DC Voltmeter 2. AC Voltmeter

12. Schematic Diagram of Voltmeter: Voltmeter must be connected in Parallel with Load

13. Connection Diagram of Voltmeter:

14. Pictorial View of DC & AC Voltmeter DC Voltmeter AC Voltmeter

15. Multimeter/AVO meter: A typical multimeter would include basic features such as the ability to measure voltage, current and resistance

16. Wattmeter Measures the Electric power in watts Types: 1. Analog Wattmeter 2. Digital Wattmeter

17. Schematic Diagram of Wattmeter: cc pc Measured Power,P=VI

18. Pictorial View of Wattmeter:

19. Report Writing: 01. Objectives 02. Introduction 03. Apparatus Required 04. Experimental Setup or Circuit Diagram 05. Experimental Procedure 06. Experimental Data 07. Calculation 08. Graphs (if any) 09. Results and Discussion 10. Conclusion 11. Question & Answer 12. References

20. Objectives: • Purpose of Experiment e.g.To be familiar with the working principle of various electric meters. • Should be mentioned in points

21. Introduction: • Introductory Description. e.g. Why and where ammeter, voltmeter & wattmeter are used. • Working principle and additional figures

22. Apparatus Required: • Should be mentioned in numbers • Name of Equipments with rating • Quantity

23. Experimental Setup: • The diagram of the work • Specify the Equipments • Direction of current flow • Polarity (if any)

24. Experimental Data: • Should be written in table • Draw Table using Pencil & scale.

25. Calculation: • Elaborate Calculation of the whole work [will be written in the board]

26. Graph: • Proper Scaling of axis • Encircle the plotted data points • Labeling [Units should be included] • Figure No. along with figure name should be mentioned

27. Result & Discussion: • Discuss your results • Is there any error in results & why? • Is there any deviation in your result from ideal value & why? • Comparison between measured and ideal value. • Mention numerical values (if any). • Discuss your graphs.

28. Conclusion: • What have you learnt from this experiment? • What is the necessity of this experiment? • What is the way to abase the error [if any]

29. Question and Answer: • Questions must be written in your report. • Relevant answer should be written.

30. Reference: • Sources- you have used to write the report • For more references – write in numbers e.g. [1] writer name, “source name”. [2]……………..

31. References of Today’s Experiment: • [1] B.L. Theraja, “A Textbook of Electrical Technology, Volume I”. • [2] Robert L. Boylestad, “Introductory Circuit Analysis”.

32. Marks Distribution: Attendance: 10% Lab Reports and Class Performance: 50% Quizzes: 20% Central Viva: 20% Total 100%

33. Top page of Sessional Report: