A person loses electrons when removing a jumper. The person then touches an earthed metal tap and receives a brief shock. Which sequence is correct?
The person becomes negative; electrons leave for Earth; the person becomes neutral.
The person becomes negative; electrons enter from Earth; the person becomes neutral.
The person becomes positive; electrons leave for Earth; the person becomes neutral.
The person becomes positive; electrons enter from Earth; the person becomes neutral.
91 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.