Contributors:
Dr.T.K. Bhattacharya,
Prof. N.K. De,Prof.
G.D. Ray
Engineering students of almost all disciplines has to undergo this course (name may be slightly different in different course curriculum) as a core subject in the first semester. It is needless to mention that how much we are dependent on electricity in our day to day life. A reasonable understanding on the basics of applied electricity is therefore important for every engineer.
Objectives:
• Familiarity with and understanding of the basic elements encountered in electric networks.
• To learn the fundamental differences between linear and nonlinear circuits.
• To understand the Kirchhoff’s voltage and current laws and their applications to circuits.
• Meaning of circuit ground and the voltages referenced to ground.
• Understanding the basic principles of voltage dividers and current dividers.
• Potentiometer and loading effects.
• To understand the fundamental differences between ideal and practical voltage and current sources and their mathematical models to represent these source models in electric circuits.
• Distinguish between independent and dependent sources those encountered in electric circuits.
• Meaning of delivering and absorbing power by the source.
Introduction:
The interconnection of various electric elements in a prescribed manner comprises as an electric circuit in order to perform a desired function. The electric elements include controlled and uncontrolled source of energy, resistors, capacitors, inductors, etc. Analysis of electric circuits refers to computations required to determine the unknown quantities such as voltage, current and power associated with one or more elements in the circuit. To contribute to the solution of engineering problems one must acquire the basic knowledge of electric circuit analysis and laws. Many other systems, like mechanical, hydraulic, thermal, magnetic and power system are easy to analyze and model by a circuit. To learn how to analyze the models of these systems, first one needs to learn the techniques of circuit analysis. We shall discuss briefly some of the basic
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