Question

Two charged proteins P1 and P2 are located at positions (1m,1m) and (-1m,1m) respectively on a Cartesian coordinate system. They have charges of 1.0 nC and -1.0 nC respectively. A key enzyme E1 which regulates an important biochemical pathway, is located at the origin of the coordinate system.

a) Compute the electric potential V at the position of E1.
b) Draw a vector diagram for the electric field vector Etot., at the position of E1
c) Show, or argue, that the y component of the electric field vector Etot.,y at the position of E1, is equal to 0.
d) Copute the electric field vector Etot., at the position of E1. Hint: Etot. is a vector.

Answer 1

the potential at origin is zero.