What is the force of the electric field on a proton if the field is set up between the plates of a discharge?

Question

tube and has a magnitude of 5.00X104 N/C?

Answer 1

F = εq

as F is the force of the electric field on the proton

ε is the magnitude of the electric field

q is the proton charge = 1.6*10^ -19 Columbs

So

F = εq = 5.00*10^4 * 1.6*10^ -19 = 8*10^ -15 N