A metal tank can gain excess electrons while fuel enters it. A technician compares four arrangements.
| Arrangement | Connection during filling |
|---|---|
| P | Metal wire from tank to Earth |
| Q | Plastic cord from tank to Earth |
| R | Metal wire from tank to an isolated metal stand |
| S | Metal wire from tank to an insulated handle |
Which arrangement continuously removes excess electrons to Earth?
Arrangement Q
Arrangement R
Arrangement P
Arrangement S
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.