Question

Three point charges are located as shown in the figure. Both q and qs are a single negative charge (like an electron) and q2 is a single positive charge (like a proton). The distance between q1 and q2 is L as is the distance between q2 and q3 and between q2 and the point p. What is the direction of the electric field at point p shown in the figure? a. b. d. 142 e. Three point charges are located as shown in the figure. Both q, and qs are each a single negative charge (like an electron) and q2 is a single positive charge (like a proton). The distance between qi and g is L as is the distance between 42 and qs and between go and the point p. What is the magnitude of the net electric field at point p if L 0.25 m (same figure as in problem 7)? a. 2.30 x 108 N/C b. 1.15 x 108 N/C c. 6.74 x 109 N/C d. 1.63 x 10 N/C e. 0.0 N/C q1

Answer 1

Solution due to charge on a - El cos 45º 454 VEL A AB Ez (E, +E2) Sin 450 ---- -el. Ez = E, 3 K9 Net Field - k9 x2 x Sin 450 12L)2 • Edown=&E sinu5° kq - Horizontal components cancel out on EZ R9 kq noward z = upward as upward field is strong hence I would have more Effect So Net field 1 upward direction Net field Enet = F, -Ez+E3) 0-2540125L1057 *716810-19 - ? J2 L² = 9x109 lat x116X10-19 9x109 x G2 -) x1.6 X10-19 0:25 X0.25 J2 = 6.74810-9 w/C