Course Title : Sessional on EEE 1119 Course No. : EEE 1120 Course Title : Sessional on EEE 1119 Credits: 0.75 Course Teacher Mr. Muhammad Mainul Islam Assistant Professor, Dept. of EEE, KUET Mr. Abu Syed Md. Jannatul Islam Lecturer, Dept. of EEE, KUET Department of Leather Engineering (LE) Khulna University of Engineering & Technology (KUET)

Today’s Experiment Exp. No. : 01 Name of the Experiment: Familiarization with lab equipment's of electrical circuit lab and measurement of voltage, current, power for both AC and DC supply. AJI 9/16/2018

Task ! ! ! ! ! ! ! ! AC DC 9/16/2018 AJI

AC

AC Alternating current describes the flow of charge that changes direction periodically. As a result, the voltage level also reverses along with the current. 9/16/2018 AJI

AC 9/16/2018 AJI

DC 9/16/2018 AJI

Task ! ! ! ! ! ! ! ! How can you measure these AC or DC voltage or Current??? 9/16/2018 AJI

AVO meter, Commercially called Commonly used Electric Meters Ammeter Voltmeter Wattmeter AVO meter, Commercially called Multimeter 9/16/2018 AJI

Ammeter Types: 1. DC Ammeter 2. AC Ammeter Measures The amount of Current flow through the circuit Types: 1. DC Ammeter 2. AC Ammeter 9/16/2018 AJI

Schematic Diagram of Ammeter Ammeter Should always be connected in Series with Load 9/16/2018 AJI

Pictorial View of DC & AC Ammeter DC Ammeter AC Ammeter 9/16/2018 AJI

Voltmeter Used to measure Electrical potential difference between two points in an electric circuit Types: 1. DC Voltmeter 2. AC Voltmeter 9/16/2018 AJI

Schematic Diagram of Voltmeter Voltmeter must be connected in Parallel with Load 9/16/2018 AJI

Connection Diagram of Voltmeter 9/16/2018 AJI

Pictorial View of DC & AC Voltmeter DC Voltmeter AC Voltmeter 9/16/2018 AJI

Multimeter/AVO meter A multimeter is a device used to measure voltage, resistance and current in electronics & electrical equipment. It is also used to test continuity between to 2 points to verify if there is any breaks in circuit or line. There are two types of multimeter Analog & Digital Analog has a needle style gauge Digital has a LCD display 9/16/2018 AJI

Multimeter/AVO meter 9/16/2018 AJI

Multimeter/AVO meter Red meter lead Is connected to Voltage/Resistance or amperage port and Is considered the positive connection Black meter lead Is always connected to the common port and Is considered the negative connection Probes Are the handles used to hold tip on the tested connection Tips Are at the end of the probe and provides a connection point 9/16/2018 AJI

Measuring Continuity 9/16/2018 AJI

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Tumbler Switch 9/16/2018 AJI

Wattmeter Measures the Electric power in watts Types: 1. Analog Wattmeter 2. Digital Wattmeter 9/16/2018 AJI

Pictorial View of Wattmeter: 9/16/2018 AJI

Schematic Diagram of Wattmeter cc pc Measured Power, P=VI 9/16/2018 AJI

Wattmeter 9/16/2018 AJI

Rheostat It is an adjustable or variable resistor. It is used to control the electrical resistance of a circuit without interrupting the flow of current. Rheostat has 3 terminals and usually consist of a resistive wire wrapped to form a toroid coil with a wiper that slides along the surface of the coil. 9/16/2018 AJI

Capacitor A capacitor is a passive two-terminal electrical component that stores electrical energy in an electric field. The effect of a capacitor is known as capacitance. 9/16/2018 AJI

Ballast An electrical ballast is a device placed in line with the load to limit the amount of current in an electrical circuit. It may be a fixed or variable resistor. A familiar and widely used example is the inductive ballast used in fluorescent lamps to limit the current through the tube, which would otherwise rise to a destructive level due to the negative differential resistance artifact in the tube's voltage-current characteristic. 9/16/2018 AJI

Report Writing: 01. Objectives 02. Introduction 03. Apparatus Required 04. Experimental Setup or Circuit Diagram 05. Experimental Data 06. Calculation 07. Graphs (if any) 08. Results and Discussion 09. Conclusion 10. Question & Answer(if any) 11. References 9/16/2018 AJI

Objectives: Purpose of Experiment e.g.To be familiar with the working principle of various electric meters. Should be mentioned in points 9/16/2018 AJI

Introduction: Introductory Description. e.g. Why and where ammeter, voltmeter & wattmeter are used. Working principle and additional figures 9/16/2018 AJI

Apparatus Required: Should be mentioned in numbers Name of Equipments with rating Quantity 9/16/2018 AJI

Experimental Setup: The diagram of the work Specify the Equipments Direction of current flow Polarity (if any) 9/16/2018 AJI

Experimental Data: Should be written in table Draw Table using Pencil/Pen & scale. 9/16/2018 AJI

Calculation: Elaborate Calculation of the whole work [will be written in the board] 9/16/2018 AJI

Graph: Proper Scaling of axis Encircle the plotted data points Labeling [Units should be included] Figure No. along with figure name and Table No. along with table should be mentioned 9/16/2018 AJI

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. 9/16/2018 AJI

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] 9/16/2018 AJI

Question and Answer: Questions must be written in your report. Relevant answer should be written. 9/16/2018 AJI

Reference: Sources- you have used to write the report For more references – write in numbers e.g. [1] writer name, “source name”. [2]……………. 9/16/2018 AJI

References of Today’s Experiment [1] B.L. Theraja, “A Textbook of Electrical Technology, Volume I”. [2] Robert L. Boylestad, “Introductory Circuit Analysis”. 9/16/2018 AJI

Marks Distribution: Attendance: 10% Lab Reports and Class Performance: 50% Quizzes: 20% Central Viva: 20% Total 100% 9/16/2018 AJI

Top page of Sessional Report: 9/16/2018 AJI

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