Notes 

e.m.f. & p.d., resistance, Ohm's law, resistivity and power

Charge, current, Kirchhoff's laws & mean drift velocity notes.

Kirchhoff's laws, resistors in series & parallel, internal resistance and potential divider circuit notes.

Waves, reflection, refraction, diffraction, polarisation, EM spectrum, superposition and stationary wave notes.

Quantum physics, photons, the Planck constant, photoelectric effect, Einstein's photoelectric equation and wave-particle duality notes.