Final answer:
The charge of the particle is 1.60×10-19 C.
Step-by-step explanation:
The charge of the particle can be found using the formula q = C * V, where q is the charge, C is the capacitance, and V is the electric potential.
In this case, the electric potential does not change in the y or z direction, so we only need to consider the change in the x direction. Since the electric potential is increasing in the x direction, the charge of the particle must be positive. Therefore, the charge of the particle is 1.60×10-19 C.