Electronics/Expanded Edition DC circuits
Resistance edit
Ohm's law, resistivity and conductivity
Capacitance edit
Some formulae for capacitance of different shapes, dependence on dielectric constant, units
Batteries edit
Behaviour in circuits
Solving circuits edit
Kirchoff's laws, Thévenin's theorem
Hall effect, Piezoelectricity, etc edit
Voltages induced by magnetic fields, stress, temperature difference, etc.