Steady-State Direct Current Circuits/Batteries, Resistors

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Video Clips

Kirchhoff's Rules (8.02, Spring 2002)

Video RealVideo®
11:37 minutes (32:25 - 44:02)

Definition, with example of using the rules to solve a circuit of batteries and resistors.

Prior Knowledge: Current (beginning of video lecture 9)
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Ohm's Law and Kirchhoff's Rules (8.02, Spring 2002)

Video RealVideo®
11:27 minutes (32:47 - 44:14)

Finding currents and power in a circuit of batteries and resistors.

Prior Knowledge: Current, Resistance, Power (video lecture 9 and video lecture 10)
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Lecture Notes

Kirchhoff's Loop Rules (8.02T, Spring 2005)

Document PDF - 1.2 MB
Page 27 to page 34

Kirchhoff's Rules for the sum of currents at a junction and the sum of potential differences around a loop in a circuit. Step-by-step method for solving circuit problems with a worked example.

Prior Knowledge: DC Circuits (pages 4-26 of presentation 10)
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DC Circuits (8.02T, Spring 2005)

Document PDF
Page 2 to page 2

Definition of electromotive force. Statement of Kirchhoff's rules. Step-by-step method for solving DC circuit problems. Equations for resistance, power, and resistors in series and in parallel.

Prior Knowledge: Electric Field (R2) and Current (R10)
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Kirchhoff's Rules (8.022, Fall 2004)

Document PDF
Page 5 to page 9

Kirchhoff's Second and First rules for circuits; resistors in series and parallel; finding current.

Prior Knowledge: EMF
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More on Solving Circuits (8.022, Fall 2004)

Document PDF
Page 10 to page 12

Using Kirchhoff's rules to solve complex circuits; internal resistance and power dissipation.

Prior Knowledge: Kirchhoff's rules
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Online Textbook Chapters

Loads and EMF (8.02T, Spring 2005)

Document PDF

Circuit components (voltage, resistor, switch); parallel and series connection; EMF defined; internal resistance.

Prior Knowledge: Ohm's Law
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Kirchhoff's Rules (8.02T, Spring 2005)

Document PDF

Equivalent resistance; junction and loop rules of Kirchhoff; measuring voltage and current.

Prior Knowledge: Loads and EMF
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Worked Circuit Problems (8.02T, Spring 2005)

Document PDF

Detailed strategy for using Kirchhoff's rules; equivalent resistance; impedance matching; RC circuit; resistor networks.

Prior Knowledge: RC circuits
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Practice Problems

Bulbs and Batteries (8.02T, Spring 2005)

Document PDF
Problem 3 to problem 10

Four questions about current and power in simple circuits of batteries and lightbulbs, with answers and explanations.

Prior Knowledge: None
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Resistor Network (8.02, Spring 2002)

Document PDF
Problem 7

Finding potential differences and currents in a network of resistors.

Prior Knowledge: None
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Voltage and Resistance (8.02X, Spring 2005)

Document PDF
Problem 2

Explaining connection between V and R across capacitor.

Prior Knowledge: None
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Exam Questions

3-Resistor Circuit (8.02, Spring 2002)

Document PDF
Problem 1

5-part problem; determining which bulbs in a circuit are lit when various switches are closed and which are brightest.

Prior Knowledge: None
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Wheatstone Bridge (8.02, Spring 2002)

Document PDF
Problem 3

Finding unknown resistance in Wheatstone Bridge.

Prior Knowledge: None
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Document PDF
Problem 13

Finding voltmeter readings and current in a circuit enclosing a changing magnetic field.

Prior Knowledge: None
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Connecting a Circuit (8.02X, Spring 2005)

Document PDF
Problem 3

6-part problem; potentials of capacitor plates and voltages in circuit before and after connection; doubled capacitor distance.

Prior Knowledge: None
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Two Bulbs in a Circuit (8.02X, Spring 2005)

Document PDF
Problem 4

Comparing brightness and resistance for differently-rated bulbs in series.

Prior Knowledge: None
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MIT courses referenced in this section: