From gauss's law, the electric field set up by a uniform line of charge is given by the following expression where is a unit vector pointing radially away from the line and λ is the linear charge density along the line. = derive an expression for the potential difference between r = r1 and r = r2. (use any variable or symbol stated above along with the following as necessary: ε0 and π.)

Explanation:

Using the Gauss Law, we obtain the electric Field for a uniform large line of charge:

We calculate the potential difference from the electric field:

answer: d. a cme increases the amount of energy in the solar wind

explanation:

coronal mass ejections, also called cmes, are large clouds of plasma and magnetic field that erupt from the sun. only when the cloud is aimed at earth will the cme hit earth and therefore cause impacts. high-speed solar wind streams come from areas on the sun known as coronal holes.