1. Science
2. Physics
3. an uncharged spherical conductor has a radius r and a...

# Question: an uncharged spherical conductor has a radius r and a...

###### Question details

An uncharged spherical conductor has a radius R and a  small spherical cavity at its center that has a radius R/8. The conductor is otherwise solid. Inside the cavity is a positive charge 2Q. What is the electric field at a distance 2R from the center?

Select one: