Question

please answer the following:

Problem 3: Charge 31--.3 DC is located at the coordinate system origin, while change - 1.26 DC is located at (2. 01. where a -1.5 m. The point P bas coordinates 1a, D). wbcre 8 -0.93 m A third change 9: - 4.50C will be placed later. (a,b) Otheexperta.com Pait (a) Find the cloctric potsatial : at point P. in volts. Assume the potential is zero at intinity'. Numeric : A numeric value is expected and not an expression. from very far away at the int" l'url(h) llaw much work in jule, would you have to do to bring the third charge Numeric : Anuncierie value is expected and not an expression. - l'url(c) What is the total pe l ery 1), in joules of the firul configuration of three charges Numeric : Anumcric value is expected and not an expression.

Answer 1

P(a,b) > - T 9, = -1.5 nc 2 = 1.26 nc a = 1.5m b = 0.95m 2₂ = 4.5 ne Pq = a + b ² = 1. 8m 12₂ = b = 0.95m a) Vp = Vrs, + Veer 118 = 9X109xC-8.5X169) + 9x10° x( t. 26x103 0.95 p = 4.43 v w = . Vp - 4.5x103 x 4.43 T W = 19.96J X 1097 b) c) Total potential energy of final config. V= Kq, 12 + x2, 3 t Ka, 23 (P2) = 9x103/-1.5x18 x 1.26x109, px 1.26X1D + 1.26X10 X 4.5X/09 1.5 0.95 + -1.5810" x 4.5x15" I U = 8.6x109 J