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Circuit Analysis-1 Fall-2014

EE -1111

Instructor: Hafiz Zaheer Hussain Email: zaheer.hussain@ee.uol.edu.pk

www.hafizzaheer.pbworks.com

Department of Electrical Engineering

The University of Lahore Lecture # 1& 2

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Instructor

Hafiz Zaheer Hussain

MS Electrical Engineering*

By the Grace of Almighty Allah,

Awarded Rector Gold Medal in 2013

Three Time Rector Merit Award on scoring GPA 4.0 in 2010,2011 and 2012

One Time Dean Merit Award on scoring GPA 3.96 in 2013

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What do an Electrical

Engineer do?

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What do an Electrical Engineer do?

• Electrical Engineers

• Design,

• Construct,

• Analyze and

• Improve electrical and electronic

components and systems in all shapes and

sizes.

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Circuit Analysis- 1 Textbook:

• Fundamentals of Electric 5th or 4th Edition by

Alexander/Sadiku

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Grading Policy:

• Quizzes: 10%

• Assignment: 05%

• Class Participation: 05%

• Midterm: 20%

• Final: 40%

• Lab: 20%

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Grade Distribution

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MARKS GRADE

=>85 A

=>80 A-

=>75 B+

=>70 B

=>65 C+

=>60 C

=>55 D+

=>50 D

Less then 50 F

Attendance Policy

• 80% attendance required for siting in final exam

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OBJECTIVES: CHAPTER 1

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• Understand the basic SI units and SI prefixes

• Learn about the concepts of charge, current, and voltage

• Learn about power and energy

• Become familiar with the passive sign convention

• Learn about the circuit elements including dependent and

independent sources

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1.1 Introduction

1.2 Systems of Units

1.3 Charge and Current

1.4 Voltage

1.5 Power and Energy

1.6 Circuit Element

Circuit Analysis- 1 Introduction

• By linear we mean a circuit or device having an output that is

proportional to the input.

• An electric circuit is an interconnection of electrical elements.

• A network, in the context of electronics , is a collection of

interconnected components.

• Network analysis is the process of finding the voltages across,

and the currents through, every component in the network.

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1.1 Introduction

1.2 Systems of Units

1.3 Charge and Current

1.4 Voltage

1.5 Power and Energy

1.6 Circuit Element

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The SI Prefix

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1.1 Introduction

1.2 Systems of Units

1.3 Charge and Current

1.4 Voltage

1.5 Power and Energy

1.6 Circuit Element

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1.3 Charge and Current

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1.3 Charge and Current

Law of Conservation of Charge

Charge cannot be created nor destroyed, only transferred

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1.3 Charge and Current

Electric Current definition

1.3 Charge and Current

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1.3 Charge and Current

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Total Charge Transfer

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1.3 Charge and Current

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1.3 Charge and Current

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Solution

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Solution

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Current direction- Arrow

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1.1 Introduction

1.2 Systems of Units

1.3 Charge and Current

1.4 Voltage

1.5 Power and Energy

1.6 Circuit Element

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(a) Vab = 9V (b) Vab = -9V