Look at the two charges A and B below.
field lines
a) Name the type of charge at A
b) Name the type of charge at B
c) Name the type of force that would exist between A and B.
d) If the magnitude of the charge on A was 10μC and that on B was 20μC and the charges
were 20cm apart, calculate the magnitude of the force between the two charges. (Type
your working into the space below).
(Take Coulomb's Constant to have a value of 9 x 10° N m² C-²).
