A point charge of $5.0\times {10}^{-6}C$ is located at the origin. Calculate the magnitude of the electric field at point A, located at coordinates $(0,12.0)$ meters. (Assume vacuum, $k=8.99\times {10}^{9}N\cdot m^2/C^2$.)

Under electrostatic conditions, the electric field just outside the surface of any charged conductor is:

A large non-conducting slab of thickness $2d$ has a uniform volume charge density $\rho$. What is the magnitude of the electric field at a point located at a distance $x$ from the center of the slab, where $0<\left|x\right|<d$?

In a region of space, the electric field has components $E_y$=$0$ and $E_z$=$0$. Which statement is true about the direction of the electric field in this region?

A 1.5μC charge, with a mass of 50g, is in the presence of an electric field that perfectly balances its gravity. What magnitude does the electric field need to be, and in what direction does it need to point?

If two equal charges are separated by some distance, they form an electric dipole. Find the electric field at the center of an electric dipole, given by the point P in the following figure, formed by a 1C and a −1C charge separated by 1 cm.