Question

1. Three different, small charged objects are placed as shown in the figure. Given q1 2e a-3e, and gs--Se, and that d 2.0 x 10 m, what is the net force on the middle charge ? Show appropriately scaled and labeled force vectors acting on q2 on the diagram Ke a Ke-1912) y i F-Fr Fret 24 9, 2e T 95--Se &-2.06-7 20-7 G.0E-21 43 -2d Fnct 1.29E -4 N E=(4/+3k)x10 N/C.What is its electric flux through a circular area of radius 2.0 m that lies in the xy-plane? &.63E 2. Consider the uniform electric field A-TT A-4 jCat-5FES Aler Sar XIO 5E3- 0.01 S0.337.7

Answer 1

1- 2e, ,= -3c, d2x1-m magnitude of force The acting on d Duc to 1 F23 2d F21 21-3е d2 x 2ex3e 2 N 3.45 x 10 (2l-)2 (2) Ducto 2. K1223 15Ke2 k* 3e x 5e F23 = - 4d 2 4d 2 15x 3Sxl cx1-bj N = 2.1Cx 16 4 X Net Force On 9,- The F21 (-2.1 N +(3-45 x lo-1* N F23 wherc anod y is unit vectoy.

magnitve F2 = J(210x10-14) (3.45 I62 4.07 x lo - 14 N pircction , - 2.1 x4 4an 32.65 R: 3,45 x counterclock 122.05 wise from +x- axd s. Circular Þlane Mes in the 2-plane dA R electric flux dA 3A l03 dA о + 3x lo3 d A dA 3x103 A 3 X103 x 3. 14 X (2) 2 3 Xl03 Ty2 Nm/c 37680 AN