A negatively charged pollen grain is small enough to be treated as a point charge. A small positive test charge is placed first close to the grain and then farther away.
Which statement compares the force on the test charge at the farther position with the force at the closer position?
The force is away from the grain and is weaker at the farther position.
The force is towards the grain and is stronger at the farther position.
The force is towards the grain and is weaker at the farther position.
The force is away from the grain and is stronger at the farther position.
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.