INT CALC Two positive point charges q are located on the y-axis at y = ±a.a. Write an expression for the electric potential at position x on the x-axis.

Two positive point charges are 5.0 cm apart. If the electric potential energy is 72 μJ, what is the magnitude of the force between the two charges?

A 1.0-mm-diameter ball bearing has 2.0×10^9 excess electrons. What is the ball bearing's potential?

CALC The electric field in a region of space is Ex=5000x V/m , where x is in meters.b. Find an expression for the potential V at position x. As a reference, let V=0 V at the origin.

CALC An electric dipole at the origin consists of two charges ±q spaced distance s apart along the y-axis.a. Find an expression for the potential V(x, y) at an arbitrary point in the xy-plane. Your answer will be in terms of q, s, x, and y.

What is the electric potential 3.0 cm away from a $-12\text{nC}$ point charge?

A $-9.0\text{nC}$charge sits at the origin, and a $+18\text{nC}$ charge is at $x=2.0\mathrm{cm}$. At what location(s) is the potential zero?