A positively charged sphere is fixed on an insulating stand. A small negatively charged bead is placed in the electric field of the sphere. Why does the bead experience a force?
The bead is charged and it sits in the electric field of the sphere
The bead touches the electric field lines that surround the sphere
The bead is attracted by the insulating stand holding the sphere
The bead loses electrons to the sphere through the air between
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.