A-Level Physics OCR A H556

4.3.1: Series and parallel circuits

#4.3.1a

Kirchhoff’s second law; the conservation of energy

#4.3.1b

Kirchhoff’s first and second laws applied to electrical circuits

#4.3.1c

total resistance of two or more resistors in series; $R = R_1 + R_2 + ...$

#4.3.1d

total resistance of two or more resistors in parallel; $\dfrac{1}{R} = \dfrac{1}{R_1} + \dfrac{1}{R_2} + ...$

#4.3.1e

analysis of circuits with components, including both series and parallel

#4.3.1f

analysis of circuits with more than one source of e.m.f.

4.2.5

Power

4.3.2

Internal resistance