An aircraft is joined to an earthing wire before fuel is pumped into it. Which statement gives the reason for using the earthing wire?
The wire carries heat away from the fuel, so the fuel cannot ignite
The wire lets charge flow to earth, so no spark can ignite the fuel
The wire stops the fuel becoming charged as it flows into the tank
The wire holds the aircraft in place while the fuel is pumped in
40 exam-style questions on AQA GCSE Physics 2.5 Static electricity, covering 2.5.1 Static charge and 2.5.2 Electric fields. Each one has a worked solution and a mark scheme showing where the marks go.