Question

Question 17 View Policies Current Attempt in Progress How much work is required to set up the four-charge configuration of the figure if q = 1.85 pC, a = 45.3 cm, and the particles are initially infinitely far apart and at rest? Number Units

Answer 1

Explanation is given below
Ya +9 Given that qo 1.85pc and a = 45.3 cm Here Joan giving names A B C and a to four charges. Suppose first charge tq is brought to A and the three charges -q, tq and -q are brought to B, C and a respectively Total work needed can be colulated as (2) wone done to bring first charge , tq to A so (i) wone' done to bring -q do B, when th is at A = charge at Bx electrostatic potential at B due to a Charge that A. - anood and work needed to bring tq to c when tq is at A and q is at B a Clarge at cx electrostatic potential at a due to - charges at A and B aq 4ac do 44

1 - q too when tq is at Ai-2 at B ) Work done to bring and tq atc a charge at ox A, Baude at due to charges at Potential . 1-2 cheated to other east) -94 (2-465) 44d work done to set up four Charge Configuration No - 95 70+ 1+(1-7)+(2- . Card w= -24_ (4-va) Given 406d qe ligsge 1.85110120 d = 45. 3cm = 45.2x10² W. - (1185xrotz j* 'Ta-va 4x3.14°88.9x18? ?x 4513x1ó w. -1.758x1013 g wone done Configuration to set up four charge is won 1.758x10ls Joule