Two particles of equal mass 'm' and charge 'q' are kept at a distance of 16 cm. They do not experience any force. Then evaluate:
a) (q = 2 × 10⁻⁶ C).
b) (q = 4 × 10⁻⁶ C).
c) (q = 8 × 10⁻⁶ C).
d) (q = 1 × 10⁻⁶ C).