Basic electrical and electronics for first-year engineering: Kirchhoff's laws, Thevenin and Norton equivalents, the PN junction diode, transistor biasing, and op-amp amplifier circuits.
5 reference pages
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.
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.