A 6.0 Ω resistor and an 18 Ω resistor are connected in series with a 12 V battery.
Calculate the current in the circuit.
Calculate the power transferred to the 18 Ω resistor.
Explain which resistor transfers more energy each second.
Calculate the total energy transferred by the battery in 5.0 minutes.
105 exam-style questions on Edexcel GCSE Physics 10.3 Electrical energy and power, covering 10.3.1 The heating effect of an electric current, 10.3.2 Reducing energy transfer in wires, 10.3.3 Advantages and disadvantages of the heating effect, 10.3.4 Energy transferred by an electrical circuit, 10.3.5 Electrical power, and 10.3.6 Energy transfers in domestic devices. Each one has a worked solution and a mark scheme showing where the marks go.