Practice!

Sample Problem

What is the magnitude of the electric field intensity at a point in the field where an electron experiences a 1.0-newton force (electrons have a charge of -1.6 × 10-19 C) ?

Solution

We will use the equation E = F/q. We plug in all of our given values and we get E = 1.0/ (-1.6 × 10-19) = 6.3 × 1018 N/C.