In a commercial food production facility, dry flour is delivered from a bulk transport tanker and blown pneumatically at high speed through a non-conducting polymer pipe into a large metal storage silo.
Fine flour dust suspended in the air inside the silo forms a highly explosive mixture.
Explain:
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.