State that the combined resistance of two resistors in parallel is less than that of either resistor by itself

Sketch and explain the current-voltage graphs for a resistor of constant resistance, a filament lamp and a diode

Draw and interpret circuit diagrams containing cells, batteries, power supplies, generators, potential dividers, switches, resistors (fixed and variable), heaters, thermistors (NTC only), light-dependent resistors (LDRs), lamps, motors, bells, ammeters, voltmeters, magnetising coils, transformers, fuses and relays and know how these components behave in the circuit