Two identical positively charged spheres are separated by a distance. The magnitude of the charge on each sphere is the same, and both spheres are positive. The point P P\,P is on the line joining the centres of the spheres and is the same distance from the centre of each sphere.
Which statement is correct?
The electric potential at PPP is zero.
The magnitude of the electric field strength at PPP is zero.
A positively charged particle placed at PPP will experience a net force to the right.
The direction of the electric field at PPP is to the left.
15 exam-style questions on OCR A A Level Physics Electric fields, covering Point and spherical charges, Coulomb's law, Uniform electric field, and Electric potential and energy. Each one has a worked solution and a mark scheme showing where the marks go.