Apoint charge q is located at the center of a cube whose sides are of length a. if there are no other charges in this system, what is the electric flux through one face of the cube?

Explanation:

Given: A charge q is enclosed within the cube

The length of the one side of cube = a

Now, according to the Gauss Law the net flux () through the closed surface containing the charge q is:

where, is the permittivity

This electric flux is for the 6 faces of the cube

thus, for the one face of the cube the electric flux will be

specific latent heat of fusion, lf, of a substance is defined as the amount of heat required to change a unit mass of the substance from solid to liquid state, without any change in the temperature.

explanation:

it becomes positively charged by charging it