During the refuelling of an aircraft on a runway, the high-speed flow of aviation fuel through the delivery hose causes electrostatic charge to accumulate. Before any fuel is transferred, a flexible brass cable is securely clamped between the metal fuselage of the aircraft and a grounding rod embedded in the earth.
Explain why a brass cable is used to connect the aircraft to the earth.
47 exam-style questions on Edexcel GCSE Physics 11.1 Charging by friction, covering 11.1.1 Charging insulators by friction, 11.1.2 Forces between charges, 11.1.3 Electrostatic phenomena, and 11.1.4 Earthing and removing charge. Each one has a worked solution and a mark scheme showing where the marks go.