(b) Figure shows three charged particles, held in place by forces not shown. What electrostatic force, experience by other two charges on qı? Take qı=-1.6uC, q2 = +6.7 °C and q3 =-4.3 °C, r 12 = 17 cm and r 13 = 18 cm and 0 = 40 (05 Marks) F12 r12 F13