Science4Fun
Science4 Fun: Electronic Circuit
What is an electronic circuit? Resource provides a discussion of series, parallel, and series-parallel circuits plus more.
Boston University
Elementary Physics: Current and Resistance
A general summary of electrical resistance including a comparison of AC and DC current.
Wikimedia
Wikipedia: Series and Parallel Circuits
Wikipedia offers information on two basic ways of wiring components in electrical circuits, series and parallel circuits.
Other
Southwest Tech: Combination Circuit
Explains what a combination circuit is and how to calculate the resistance and amperage values in this type of circuit.
Georgia State University
Georgia State University: Hyper Physics: Resistor Combinations
At this site from Georgia State University parallel and series connections of resistors are explained and illustrated. Equations for computing the overal voltage, current, and resistance of such circuits are given and explained.
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...
CK-12 Foundation
Ck 12: Physics: Electrical Systems Study Guide
A study guide covering electrical systems.
eSchool Today
E School Today: Electricity
Explore current electricity and different types of electric circuits.
Other
Institute for Telecommunication Sciences: Resonance
This site contains a straightforward definition of resonance in an electrical circuit.