Q.2 (a) Q1 and Q2 are point charges located at (0, -8, 6) and (0, 2, 2). If Q? is 22 nC, find
Q2 such that
(i) The force on a test charge at (0, -6, 8) has no z-component.
(ii) The E at (0, -6, 8) has no y-component.
(12 marks)
(b) Charges +Q and +5Q are separated by a distance 6 m. A third charge is located
such that the electrostatic system is in equilibrium. Find the location and the value
of the third charge in terms of Q.