00:01
Problem 54 asks to sketch the electric field lines for the system of charges shown in figure 1938, which is the one shown here that has three charges along a single line with different charges of plus 1, minus 2, and plus 3 q respectively.
00:20
So remember when we draw electric field line diagrams, the number of field lines leaving or entering a point is proportional to the charge.
00:29
So that means in this scenario, first of all, positive charge.
00:32
The electric field lines for positive charges leaves, the electric field lines for negative charges enters.
00:38
So in this scenario where we draw, let's say, three lines leaving charge one.
00:45
That means, negative 2q or magnitude of 2 needs six lines going in or out of it...