Question 8
HThe figure shows an isolated metal sphere that carries a negative charge. Points P and Q are marked. P is 2 cm from the surface of the sphere and Q is 6 cm from the surface.
Figure: An isolated negatively charged metal sphere with two points marked at different distances from its surface
a.[3]
Draw the electric field pattern for the charged sphere on the figure.
b.[2]
A small positively charged bead is placed first at P and then at Q. The bead experiences a larger force at P than at Q.
Explain why.
c.[1]
The charge on the sphere is then doubled and the bead is placed at Q again.
Suggest what happens to the force on the bead.
2.5 Static electricity Questions
40 exam-style questions on AQA GCSE Physics 2.5 Static electricity, covering 2.5.1 Static charge and 2.5.2 Electric fields. Each one has a worked solution and a mark scheme showing where the marks go.