Two protons in a particle accelerator are separated by a distance rrr.
The electrostatic repulsive force between the protons is Y Y\,Y times the gravitational attractive force between them.
What is the best estimate for YYY?
103010^{30}1030
103610^{36}1036
104210^{42}1042
104810^{48}1048
48 exam-style questions on AQA A Level Physics Electric fields (A-level only), covering Coulomb's law (A-level only), Electric field strength (A-level only), and Electric potential (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.