Question 2 |ti marks| A dipole is centred at the origin. It exerts a force oH. 4 X Ill5; D} N on a small sphere with charge +3 nC located at {0.09, D, U) m. a} Which diagram correctly shows the orientation of the dipole? [enter letter] [L [out of page] b} The distance between the positive and negative charges making up the dipole is Ill mrn. What is the charge at" the positive end at" the dipole? Show all your working for full marks