9 resources.
The path-difference conditions for bright and dark fringes, the fringe width formula, and worked examples finding fringe width and fringe position.
Kirchhoff's Current Law and Voltage Law explained, with a fully worked two-loop circuit solved for all three branch currents.
How a PN junction diode behaves under forward and reverse bias, the diode equation, and a worked example on the 'roughly 60mV per decade' current rule.
Why single-slit diffraction minima and double-slit interference maxima use the exact same-looking formula for opposite reasons, plus a worked diffraction grating example.
Einstein's photoelectric equation, the work function and threshold frequency, and a worked example finding the maximum kinetic energy of emitted electrons.
The de Broglie relation between a particle's momentum and its wavelength, and a worked example deriving the wavelength of an electron accelerated through a known voltage.
How to reduce any linear two-terminal network to a single source and resistor, with a worked example finding the Thevenin and Norton equivalents of the same circuit.
Why a transistor needs a DC bias point before it can amplify, the fixed-bias circuit equations, and a fully worked example finding the operating point.
The ideal op-amp assumptions, the inverting and non-inverting amplifier gain formulas, and worked examples computing the output voltage for each configuration.