A positively charged glass rod A is placed directly above another positively charged glass rod B.
What are the directions of the electrostatic forces on rod A and on rod B?
Force on rod A: downwards; force on rod B: downwards
Force on rod A: downwards; force on rod B: upwards
Force on rod A: upwards; force on rod B: downwards
Force on rod A: upwards; force on rod B: upwards
145 exam-style questions on CIE IGCSE Physics 4.2.1a Positive and negative charge. Each one has a worked solution and a mark scheme showing where the marks go.