Spec J249
Revise OCR GCSE Physics 3.2.10 Series and parallel circuit problems with the question bank and revision guides.
calculate the currents, potential differences and resistances in d.c. series and parallel circuits; Practical (PAG P6 Circuit components): investigate the resistance of a thermistor in water being heated, the resistance of an LDR at different light intensities, and how the power of a photocell depends on its surface area and distance from the light source.