Draw the electric fields for each of the following combinations
of point charges and charged parallel plates
A: One positive point charge with 12 field lines
near the positive plate of the parallel plates system with 12
charges
B: Two negative point charges, each with 6 field lines
near the positive plate of the parallel plates system
with 12 charges
C: One positive point charge with 5 field lines
near the negative plate of the parallel plates system with 12
charges
D: One positive point charge with 4 field lines and
one negative point charge with 8 field lines nearby the positive
plate of the parallel plates system with 12 charges.