A negatively charged insulating reference strip R is used to test an initially neutral insulating tab T. Tab T is rubbed with a cloth. When T is brought near R without touching it, the two objects move apart.
Explain what can be deduced about the charge on T and the direction of electron transfer during rubbing.
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.