Question 1. The arrangement of charges in figure 4-9 (a) is called an electrostatic dipole.
If the charges are + 1.0 LiC and - 1.0 12C respectively, and are 1 mm apart
(a) show that the total force midway between the charges is twice the force due to one charge.
(b) calculate the force due to the negative charge -Q on a test charge of +1.00 coulombs at a point 1 mm to the right of -Q
(c) calculate the force at the same point as (b)on the test charge of +1.00 coulombs due to the positive charge +Q
(d) calculate the resultant force, and show the magnitude and direction of the two forces and their resultant on a sketch
