A small bead is held to the left of an isolated positive point charge. The electric force on the bead is to the right.
The bead is moved to the right of the point charge at the same distance. Neither charge changes.
Which gives the sign of the bead and the new direction of its electric force?
Positive bead; force to the left.
Negative bead; force to the right.
Positive bead; force to the right.
Negative bead; force to the left.
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.