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# L6_Current Divider_KCL.pptx

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# L6_Current Divider_KCL.pptx

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### L6_Current Divider_KCL.pptx

1. 1. Current Divider Rule and KCL Lecture 6 A.V.Ramachandran 31-Oct-2022 (ECE and CCE)
2. 2. Syllabus • Unit 1 Introduction to Electrical Engineering, Current and Voltage sources, Resistance, Inductance and Capacitance; Ohm’s law, Kirchhoff’s law, Energy and Power – Series parallel combination of R, L, C components, Voltage Divider and Current Divider Rules – Super position Theorem, Network Analysis – Mesh and Node methods- • Unit 3 PN Junction diodes, VI Characteristics, Rectifiers: Half wave, Full wave, Bridge. Zener Diode- characteristics – regulator design, Optoelectronic devices. BJT – characteristics and configurations (CE) , Transistor as a Switch. Junction Field Effect Transistors - operation and characteristics, Thyristor (SCR)– Operation and characteristics. Fundamentals of DIAC and TRIAC. 555 Timer, Integrated circuits. Operational Amplifiers – Inverting and Non-inverting amplifier – Instrumentation amplifiers. • Rest of Unit-1: Faraday’s Laws of Electro-magnetic Induction, Magnetic Circuits, Self and Mutual Inductance, Generation of sinusoidal voltage, Instantaneous, Average and effective values of periodic functions, Phasor representation. Introduction to 3-phasesystems, Introduction to electric grids. • Unit 2 Electrical Machines: DC Motor: Construction, principle of operation, Different types of DC motors, Voltage equation of a motor, significance of back EMF, Speed, Torque, Torque-Speed characteristics, Output Power, Efficiency and applications. Single Phase Transformer: Construction, principle of operation, EMF Equation. Regulation and Efficiency of a Transformer. Induction Machine: Three Phase Induction Motor: Construction and Principle of Operation, Slip and Torque, Speed Characteristics. Stepper motor: Construction, principle and mode of operation.
3. 3. Text Books and References • Textbook(s) • Edward Hughes. “Electrical and Electronic Technology”, 10th Edition, Pearson Education Asia, 2019. • D. P. Kothari, I J Nagrath, “Electric Machines”, 5th Edition, Tata McGraw Hill, 2017. • A. P. Malvino, “Electronic Principles”, 7th Edition, Tata McGraw Hill, 2007. • References • S. K. Bhattcharya, “Basic Electrical and Electronics Engineering”, Pearson, 2012. • Vincent Del Toro, “Electrical Engineering Fundamentals”, Prentice Hall of India Private Limited, 2nd Edition, 2003. • David A. Bell, “Electronic Devices and Circuits”, 5th Edition, Oxford University Press, 2008. • (Michael Tooley B. A., “Electronic circuits: Fundamentals and Applications”, 3rd Edition, Elsevier Limited, 2006. • K. S Suresh Kumar, “Electric Circuits and Networks” • W.H. Hayt, “Engineering Circuit Analysis” Mcgraw Hill, 2012
4. 4. Electrical and Electronics Engineering Faraday’s Law and Magnetic Circuits AC Generation and Distribution Transformer DC Motor Induction Motor Stepper Motor Components R,L and C Semiconductor Devices Low Power Devices PN Junction Rectifiers BJT Switch JFET IC 555 Timer OPAMP Amplifiers High Power Devices Thyristor, Diac and Triac Laws/Theorems/Analysis/ Techniques Applications Applications Working Mechanism (CO-3) (CO-4) (CO-1 & CO-2) (CO-1) (CO-4) (CO-1) (CO-2 & CO-4) (CO-2 & CO-4) Concept Map Used to analyse and design
5. 5. Find the total resistance
6. 6. Also calculate the effective resistance as well Current divider rule?
7. 7. Summary
8. 8. Summary
9. 9. Summary
10. 10. Rule of Thumb • In a series circuit, the total resistance is always greater than the greatest resistance in the circuit. • In a parallel network, the total resistance is always less than the smallest resistance in the network
11. 11. Kirchhoff’s law • First (current) law. At any instant the algebraic sum of the currents at a junction in a network is zero. Gustav Kirchhoff [Source: Wikipedia] Electric circuits, Optics, Spectroscopy, Thermochemistry etc..
12. 12. Law need not only apply to a junction but may also apply to a section of a network
13. 13. If only input and output are investigated, no need to know about the middle one (can treat as black box)