Question

The earth has a vertical electric field at the surface, pointing down, that averages 119 N/C . This field is maintained by various atmospheric processes, including lightning. What is the excess charge on the surface of the earth

Answer 1

The excess charge on the surface of the earth can be calculated using the electric field and surface area.

Step-by-step explanation:

The excess charge on the surface of the earth can be calculated using the formula:

Charge = Electric Field * Area

The average electric field on the surface of the earth is given as 119 N/C. Since the electric field is directed downwards, the surface of the earth is negatively charged. The area of the earth's surface can be approximated as 4πr^2, where r is the radius of the earth. By substituting the given values, we can calculate the excess charge on the surface of the earth.