Current, resistance and the circuits built from them: Ohm's law, Kirchhoff's rules, power and RC charging.
Current, Resistivity & Drift Velocity What It Costs to Boil a Kettle Current Is a Flow of Charge How to Connect a Battery Current and Potential Flashlight Bulb Resistance Speaker Wires Stretching Changes Resistance Resistance Thermometer Headlights Electric Heater Lightning Bolt Will a Fuse Blow? A Dangerous Extension Cord Hair Dryer Electric Field Inside a Wire Capacitance of an Axon DC Circuits: Ohm's Law, Series/Parallel & RC Charging Mesh Analysis: Solving Multi-Loop Circuits with a Matrix Meters & Measurement The Infinite Resistor Ladder Jump-Starting a Car: Kirchhoff's Rules Battery with Internal Resistance Series or Parallel? An Illuminating Surprise Circuit with Series and Parallel Resistors Current in One Branch Bulb Brightness in a Circuit A Two-Speed Fan Analysing a Circuit Using Kirchhoff's Rules A Blinker Circuit: RC Timing RC Circuit, with EMF Discharging RC Circuit Bulb in an RC Circuit