a) i) The behaviour between charged particles in an electrostatic system is described by Coulomb's law. State Coulomb's law in words and by providing an equation, providing the meaning of each symbol and its units. ii) Two charges, Q1
(-1.75\times 10^(-9)C)
and Q2
(-1.87\times 10^(-9)C)
, are
5.7\mu m
away from each other in a chamber filled with oil with a dielectric constant of 5.6. Calculate the force between the charges. iii) Draw the resulting electric field pattern created by the two charges in 1a ii). Indicating the direction of the field. iv) If the electric field strength on the outside of a spherical Gaussian surface of radius 4 cm is
8.5\times 10^(8)Vm^(-1)
, what is the total charge contained within the surface? v) Using Coloumb's law derive an equation for the work done in moving a charge Q2 from infinity to a distance a away from añother charge Q1.