Question 14
FA student tests two electric heaters, A and B.
The Figure shows how the energy transferred by each heater changes with time.
Figure
a.[3]
Use the Figure to determine the power of heater A.
b.[2]
Explain how the Figure shows that heater A has a greater power than heater B.
c.[4]
Heater B is connected to a 230 V supply.
Determine the current in heater B.
10.3 Electrical energy and power Questions
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.