William Gilbert and static electricity
Benjamin Franklin and static electricity
Detecting charge: an electroscope
Magnets, compasses, and poles
magnets, magnetic matter, and nonmagnetic matter
Volta's battery: a voltaic pile
Making a battery from electric cells
A simple electric circuit: bulb, wire, and d-cell
Another circuit: bulb, bulb holder, wires, battery, and meters
A series circuit and a parallel circuit
Electrical resistance and meters
Electrical resistance and a rheostat
Electrical resistance, a short circuit, and a fuse
Electrical resistance and copper plating
ØOersted's discovery and Ampére's rule
Ampére, a galvanometer, and electric meters
Ampére and magnetic forces on side-by-side electric currents
Magnets from an electric currents
Conductors and nonconductors
The motor principle: the force on a current in a magnetic field
Electricity from magnets: electromagnetic induction
Check your family's electric bill and the wattage of appliances.