Electricity
Each topic is subdivided into a number of episodes.
An episode represents a coherent section of teaching – perhaps one or two lessons.
Each episode contains links to a number of activities.
Electric current
Episode 100: Preparation for electric current topic
Episode 101: Introduction to circuits
Episode 102: Current as a flow of charge
Episode 103: Currents and charge carriers
Episode 104: Drift velocity
Episode 105: Sources of electrical energy
Episode 106: Electrical power
Electrical resistance
Episode 107: Preparation for electrical resistance topic
Episode 108: Resistance
Episode 109: Electrical characteristics
Episode 110: Resistance and temperature
Episode 111: Semiconductor devices
Episode 112: Resistivity
Series and parallel circuits
Episode 113: Preparation for series and parallel circuits
Episode 114: Components in series and parallel
Episode 115: Energy and power
Episode 116: Using energy and power equations
Episode 117: Kirchhoff’s laws
Episode 118: Potential dividers
EMF and Internal Resistance
Episode 119: Preparation for EMF and internal resistance topic
Episode 120: Energy transfer in electric circuit
Episode 121: EMF and internal resistance
Episode 122: Using an oscilloscope
Episode 123: Alternating current
Capacitors
Episode 124: Preparation for capacitors topic
Episode 125: Introducing capacitors
Episode 126: Capacitance and the equation C =Q/V
Episode 127: Capacitors in series and parallel
Episode 128: Energy stored by a capacitor
Episode 129: Discharge of a capacitor: Q = Qoe-t/CR
Episode 130: R-C circuits and other systems
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