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Linear Circuits 1 - 09 - Examples
Rating: 4.8 out of 5(46 ratings)
2,054 students

Linear Circuits 1 - 09 - Examples

Examples Using Everything We Have Learned So Far
Last updated 8/2020
English
English [Auto],

What you'll learn

  • Application of Ohm's Law, Kirchhoff's Current Law, and Kirchhoff's Voltage Law
  • Application of Combining Multiple Sources
  • Application of Simplifying Resistor Networks

Course content

1 section13 lectures38m total length
  • Agenda0:18
  • A Word on Linear Circuits Textbooks....0:19
  • Review2:13

    Review basic circuit analysis using Ohm's law, power equations, and polarity concepts; apply Kirchhoff's laws and series-parallel resistor simplification with a reliable three-step method to solve examples.

  • Getting Started - What Do I Do First?6:48

    Count the circuit nodes to map current and voltage flow, then plan to simplify with a three-step process: combine resistors in series and parallel and redraw the circuit.

  • Finding Our First "Clue" to Solve the Circuit3:00

    Assign the ground reference, apply ohm's law to find voltages and currents, and use the four volts and ten point zero six volts clues to solve the circuit.

  • Solving Our Circuit, One Clue at a Time6:50

    Propel node voltages and currents through a circuit using Ohm's Law, parallel and series reductions, and Kirchhoff's current law to reveal all resistor currents and node voltages.

  • Using Kirchhoff's Current Law to Check Our Work3:17

    Learn to verify circuit values quickly by applying Kirchhoff's current law to check that the sum of currents entering and leaving each node matches, ensuring accuracy on tests.

  • What If We Had Chosen a Different Ground Node?2:15

    Explore how choosing different ground nodes in linear circuits leaves currents unchanged while node potentials shift, yet voltage differences between nodes stay constant.

  • Another Example - Simplifying a Circuit4:34

    Plan and simplify the resistor network to find the power dissipated; use a three-step process to identify series and parallel resistors and compute their equivalent resistances.

  • Another Example - Finding Our First Clue1:35

    Using Ohm's law, compute the current from the source through two series resistors and infer node voltages, including a 0.373-volt drop across the 4.59 ohm resistor.

  • Another Example - Solving Our Circuit, One Clue at a Time4:21

    Apply Ohm's law and Kirchhoff's current law to deduce node voltages and resistor currents, compute voltage drops across series resistors, and assess power dissipation in the circuit.

  • Using Kirchhoff's Current Law to Check Our Answer1:50

    Use Kirchhoff's current law to verify your answer by calculating the fifth resistor current with Ohm's law and comparing the bottom-node currents to ensure they sum to the source current.

  • Summary1:30

    Simplify resistance networks by compressing circuits into resistor equivalents. Then expand step by step using Ohm's Law and Kirchhoff's Current Law to reach the target values.

Requirements

  • High School or College Physics
  • We Also Recommend Our Previous Linear Circuits Classes

Description

Day 9 of Linear Circuits.  Lots of examples solved in different ways using everything we have learned so far:  Ohm's Law, Kirchhoff's Current Law, Kirchhoff's Voltage Law, Combining Multiple Sources, and Simplifying Resistor Networks.  Heck, we even throw in one problem we solve in two different ways showing that the ground location really is not that important.


The material covers all of the lecture material from an ninth lecture in a traditional, sophomore-level linear circuits class.

Who this course is for:

  • Beginner Engineering and Physics Students