TeachEngineering
Teach Engineering: What's the Conductivity of Gatorade?
Students use conductivity meters to measure various salt and water solutions, as indicated by the number of LEDs (light emitting diodes) that illuminate on the meter. Students create calibration curves using known amounts of table salt...
TeachEngineering
Teach Engineering: Can You Resist This?
This lab demonstrates Ohm's law as students set up simple circuits each composed of a battery, lamp and resistor. Students calculate the current flowing through the circuits they create by solving linear equations. After solving for the...
Georgia State University
Georgia State University: Hyper Physics: Ac Circuits
A very comprehensive site organized well with many topics dealing with AC circuits.
Boston University
Elementary Physics: Current and Resistance
A general summary of electrical resistance including a comparison of AC and DC current.
Georgia State University
Georgia State University: Hyper Physics: Ohm's Law and Current Law
At this site from Georgia State University Ohm's law is stated in words and using equations. A JavaScript form allows for multiple practice problems with instant feedback and reinforcement. Kirchoff's current law is stated and...
Science Education Resource Center at Carleton College
Serc: Comparing Current Intensities of Series, Parallel, and Complex Circuits
Students will investigate the differences of current in series, parallel, and complex circuits through the construction of a small house containing the different types of circuits.
Wikimedia
Wikipedia: Ohm's Law
Wikipedia provides information on Ohm's Law, stating that the voltage drop is proportional to the current running through it.
American Association of Physics Teachers
Com Padre Digital Library: Open Source Physics: Rc Circuit With Battery Model
Simulation showing the simplest RC circuit, with a resistor and capacitor in series with one another, and a battery that can be switched in the series, or switched out of the circuit.
American Association of Physics Teachers
Com Padre Digital Library: Open Source Physics: Rlc Circuit Function Generator
An electrical circuit simulation modeling a resistor, capacitor, and inductor in a series. Vary the resistance, capacitance, inductance and source frequency in the simulation.
TeachEngineering
Teach Engineering: Bulbs & Batteries in a Row
Everyday we are surrounded by circuits that use "in parallel" and "in series" circuitry. Complicated circuits designed by engineers are composed of many simpler parallel and series circuits. During this activity, students build a simple...
TeachEngineering
Teach Engineering: Hands on Activity: Designing a Thermostat
By building a basic thermostat, students will explore basic circuitry and electricity. The thermostat built out of a breadboard, temperature sensor chip, amplifier, and battery creates a linear relationship between temperature of the...
TeachEngineering
Teach Engineering: One Path
Students learn that charge movement through a circuit depends on the resistance and arrangement of the circuit components. In a hands-on activity, students build and investigate the characteristics of series circuits. In another...
California Institute of Technology
Magnet Lab: Caltech Physics Applets
Although specifically designed for physics students at Caltech, anyone interested in learning more about electricity, magnetism or various other physical phenomena can benefit by exploring these interactive applets. A circuit tutorial...
Physics Aviary
Physics Aviary: Practice Problems: Series Circuit
Determine the amount of power dissipated in a resistor that is part of a series circuit.
Physics Aviary
Physics Aviary: Practice Problems: Parallel in a Series Circuit
Determine the amount of power dissipated in a resistor in a complex circuit.
Physics Aviary
Physics Aviary: Practice Problems: Finding Internal Resistance of a Battery
Determine the internal resistance of a battery based on the electrochemical potential and the current that comes out of the battery when it is hooked to a resistor.
Physics Aviary
Physics Aviary: Practice Problems: Internal Resistance Parallel Circuit Battery
Determine the internal resistance of a battery based on the electrochemical potential and the current that comes out of the battery when it is hooked to a series of resistors connected in parallel.
Physics Aviary
Physics Aviary: Practice Problems: Finding Battery Voltage Simple
Determine the voltage of the battery based on the colors of the resistor and the current in the circuit.
Physics Aviary
Physics Aviary: Practice Problems: Finding Battery Voltage Medium
Determine the voltage of the battery based on the colors of the resistors and the current in the series circuit.
Physics Aviary
Physics Aviary: Practice Problems: Finding Battery Voltage Harder
Determine the voltage of the battery based on the colors of the resistors and the current in the parallel circuit.
Physics Aviary
Physics Aviary: Resistance of a Wire
This lab is designed to have students investigate the factors that affect the resistance of a wire. Students will be able to adjust the length of the wire, the diameter of the wire and the material from which the wire is constructed....
Concord Consortium
Concord Consortium: Troubleshooting Dc Circuits (Sparks 4)
Discover a sequence of all-resistor DC circuits in which one of the resistors is either open or short-circuited.
Concord Consortium
Concord Consortium: Dc Circuits: Series Parallel Resistances (Sparks 3)
Answer questions regarding voltage drops across resistors and currents through them in such circuits. Practice calculating the effective resistances of a set of resistances in series and parallel.
Concord Consortium
Concord Consortium: Calculating Voltage in Series Circuits
See how Ohm's Law can tell us that the voltage across resistors will depend on that current value I and each R-value.