00:01
On this question, we're given this charge configuration.
00:03
And we're asked various things.
00:04
The first is, if we replace q2 with a charge of negative 40 microcoulombs, so now q2 is equal to negative 40 microcoulombs, how does the electric field due to q1 at the location of q2 change? so q1 is creating an electric field that will point radially away from it.
00:24
And at this point here, at the point of q1, it's going to be generating an electric field that points to the right.
00:31
That's going to be the electric field from 1.
00:33
How does that change if we change the charge at q2? well, that electric field generated by 1 only depends on charge 1.
00:41
It's going to be kq1 over r squared, or the distance between the two.
00:45
So if we change q2, that doesn't affect the electric field that charge 1 creates at that point.
00:51
So it would have no effect...