Fuel flowing into a metal container causes the container to lose electrons. A metal wire connects the container to Earth throughout filling.
Which explains how the wire reduces the risk of fire?
Electrons leave the container, reducing charge build-up and the risk of a spark.
Electrons enter the container, reducing charge build-up and the risk of a spark.
Protons enter the container, reducing charge build-up and the risk of a spark.
Protons leave the container, reducing charge build-up and the risk of a spark.
80 exam-style questions on Edexcel GCSE Physics 11.2 Uses, dangers and electric fields, covering 11.2.1 Uses of electrostatic charge, 11.2.2 Dangers of sparking, 11.2.3 Electric fields, and 11.2.4 Electric fields and static electricity. Each one has a worked solution and a mark scheme showing where the marks go.