(a) The magnitude of the electric force between the two charged particles is 3.6 x 10⁻⁴ N.
(b) The schematic diagram showing the direction of the forces is shown in the image attached.
How to calculate the magnitude of the electric force?
(a) The magnitude of the electric force between the two charged particles is calculated by applying the following formula as follows;
F = kq² / r²
where;
- q is the magnitude of the two identical charges
- r is the distance between the charges
- k is Coulomb's constant
F = (9 x 10⁹ x 2 x 10⁻⁹ x 2 x 10⁻⁹) / ( 0.01)²
F = 3.6 x 10⁻⁴ N
(b) The schematic diagram showing the direction of the forces is shown in the image attached.