4.5 Radial electric fields

Question 1

Describe the radial field for a positive point charge

Answer 1

The radial lines of force point away from the positive point charge, the lines are equidistant from each other

Question 2

Describe the radial field for a negative point charge

Answer 2

Exactly the same as the positive point charge except the radial lines of force point towards the negative point charge

Question 3

What is the equation for the size of the electric field E a distance r from a point charge Q

Answer 3

E = Q/4pie0r^2

Question 4

what is the value of e0

Answer 4

8.85 x10^-12