00:01
So this is the electric field strength equation, and we can show that this equation is equivalent to another equation that we use commonly for electric field for a single point charge.
00:12
And the way that we do that is if we just plug in kulums law for a point charge, which looks like this, k, q1, q2 over r squared.
00:22
In fact, instead of using q1 and q2, let's call it q0, q0.
00:31
Or q0 and q source.
00:34
So there'll be a, let's say a charge that is a source charge, and then there'll be a little test charge, which we'll call q0 and qs.
00:46
So if i plug this in for fe, what i get is, k, which is a constant, q not, q source charge, divided by r squared...