In the diagram, Q = 12 C, point P is at x = - 30 cm, charge 2Q is at y = + 35 cm and charge -Q is at y = - 35 cm. Determine the electric field and potential at point P.

+ 2Q P Q217 20 6:35 m 0: 35 m 8 = 12 Mc Electric field at point 1. G = KB = 5.OBX10 N/ C 0 .35+ 032 E = 1 . 016 X 10 6 N/C Of = 02 = 49.40 Enet = - LE= Eco - Enet z - [ E - G ) ($01 - CE+ Ez] Singj 2 -3. 306x 105 7 - 1-1-57X106 74 2 017 Gnet = 356X106 NIC 1. 203