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EE for CE Course Outlines MID TERM I

EE for CE Course Outlines MID TERM I . Dr. Basim Zafar. EE for CE - MID TERM I . Frequency. Resistance, Capacitor & Inductors in Parallel & Series. Ohm’s Law. Two special resistor values (Open & Short Circuit). Electric Power Calculator Kirchhoff’s Current & Voltage Law

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EE for CE Course Outlines MID TERM I

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  1. EE for CE Course OutlinesMID TERM I

    Dr. BasimZafar
  2. EE for CE - MID TERM I Frequency. Resistance, Capacitor & Inductors in Parallel & Series. Ohm’s Law. Two special resistor values (Open & Short Circuit). Electric Power Calculator Kirchhoff’s Current & Voltage Law Voltage & Current Divider Circuit Analysis using KVL & KCL. Linearity and Superposition Thévenin’s Theorem Source Transformations
  3. volt volt time time 1. Frequency Frequency = Number of cycles per second Unit : Hertz Calculate the frequency of a signal Draw a signal with a certain frequency.
  4. 2. Resistance, Capacitor & Inductors in Parallel & Series. Calculate Resistance, Capacitor & Inductors in Parallel & Series combinations. Capacitors: Passive electronic component consisting of a pair of conductors separated by a dielectric (insulator). Measured in Farad (F) Uses: to block DC, to filter noise, to smooth power supplies, to tune radio channels & in memories. Inductors: Passive electrical component that can store energy in a magnetic field created by the electric current passing through it. Measured in Henry (H) Uses: Resists (reacts) AC current with delay no effect when DC is used
  5. 3. Ohm’s Law. Ohm’s Law: The voltage across a resistor is directly proportional to the current moving through the resistor V = I
  6. 4. Two special resistor values (Open & Short Circuit).
  7. 5. Electric Power Calculator Power is the time rate of change of energy Unit: watts (W) P=VI = =
  8. 6. Kirchhoff’s Current & Voltage Law Kirchhoff’s Current Law : “The sum of the current entering a node equal to the sum of the currents leaving.” Kirchhoff’s Voltage Law : “Sum of the voltage drops around a circuit equal zero.”
  9. 7. Voltage & Current Divider
  10. 8. Circuit Analysis using KVL & KCL. To solve for all currents in more than one source circuit: Count nodes minus one (possible ground) Mark a current for each branch (name and direction) Write KCL equations for each node Count the loops Write the KVL equations for each loop Solve for all unknowns
  11. SOURCE SUPERPOSITION Circuit with voltage source set to zero (SHORT CIRCUITED) = Circuit with current source set to zero(OPEN) Due to the linearity of the models we must have Principle of Source Superposition 9. Linearity and Superposition Linearity procedure: 1. Give to Vo any arbitrary value (e.g., V’out =1 ) 2. Compute the resulting source value and call it V’_s 3. Use linearity. +
  12. RTh VTh Resistive Circuit Thévenin Equivalent Circuit 10. Thévenin’s Theorem Thevenin's Theorem is a way to reduce a network to an equivalent circuit composed of a single voltage source and a series resistance. Steps to follow for Thevenin's Theorem: (1) Find the by removing the load resistor from the original circuit and calculating voltage across the open connection points. (2) Find the by removing all sources in the original circuit (voltage sources shorted and current sources open) and calculating (3) Draw the Thevenin equivalent circuit
  13. 11. Source Transformations
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