Two 12 Ω resistors are connected in series and then in parallel.
What is the combined resistance in each case?
Series = 12 Ω12\ \Omega12 Ω, Parallel = 6 Ω6\ \Omega6 Ω
Series = 12 Ω12\ \Omega12 Ω, Parallel = 12 Ω12\ \Omega12 Ω
Series = 24 Ω24\ \Omega24 Ω, Parallel = 6 Ω6\ \Omega6 Ω
Series = 24 Ω24\ \Omega24 Ω, Parallel = 12 Ω12\ \Omega12 Ω
52 exam-style questions on CIE IGCSE Physics 4.3.2a Series circuits. Each one has a worked solution and a mark scheme showing where the marks go.