Review Blast: Basic Electricity Ideas (Levels: Intro, APB, APC)

This podcast is a very quick review of the meanings of and relationships between basic electrical quantities (current, voltage, resistance, and power), and also a very quick review of the factors about a wire that affect its resistance.

Review Blast: Electric Field (Levels: Intro, APB, APC)

This podcast is a very quick review of the effects of electric field, and also of how to calculate electric field due to multiple point charges.

Review Blast: Electric Forces (Levels: Intro, APB, APC)

This podcast is a very quick review of Coulomb's Law and how to use it to solve problems involving multiple electric force vectors.

Ampere's Law (APC)

This podcast introduces Ampere's Law, a powerful formula allowing the calculation of magnetic fields due to currents for certain symmetric situations. Comparisons are made to Gauss' Law in an attempt to remind students of the power of symmetry when calculating fields, and example problems are also included.

Intro to RC Circuits (APC)

This podcast introduces concepts related to RC circuits - circuits with a resistor and capacitor in series with a voltage source. Intended to intro the ideas to students who have already learned capacitor ideas and are in the midst of studying electric circuits.

Magnetic Directions Review (APB, APC)

This podcast reviews rules for determining directions in magnetic field problems. Topics include the right-hand rule for forces on currents and charges, right-hand rule for B-field created by a current, and Lenz's law.

Electric Force Problems (Levels: Intro, APB, APC)

This podcast is a review of how to use vector addition ideas, along with Coulomb's law, to find the net force acting on a charge when it is pushed/pulled by multiple electric forces.