The figure below shows the electric field lines for two point charges separated by a small distance. 92 91 (a) What are the signs of 91 and 92² Oq₁is positive. is negative. 91 Oq2 is positive. 92 is negative.

5. In the figure below, three hollow, concentric spherical conductors are charged as follows: The inner sphere carries a charge +4Q, the middle sphere carries a charge -20. and the outer sphere carries a charge +6Q. What is the charge on the outer surface of the middle sphere? Outer sphere (A) Zero (C) +4Q (E) +2Q (B)-Q (D)-2Q Middle sphere field at a point that is 0.50 m from the center of the sphere is 15x10' N/C and is directed 6. Electric charge is uniformly distributed inside a sphere of radius 0.30 m. The electric radially outward. The maximum magnitude of the electric field in N/C is: +++++ R (A) 25x10 (B) 20x10' (C) 36x10 (D) 42x10² (E) 48x10 7. Electrically neutral objects cannot exert an electrical force on each other, but they can exert a gravitational force on each other. A) True B) False 8. A charge of uniform volume density (40 nC/m3) fills a cube with 8.0-cm edges. What is the total electric flux through the surfaces of this cube in (N.m²/C)? (A) 2.9 (B) 2.0 (C) 2.6 (D)…

1. Three identical metallic conducting spheres carry the following charges: 91 = +5.00 μC, q2 = +1.40 µC, and 93 -9.20 μC. The spheres that carry the charges 9₁ and 92 are brought into contact. Then they are separated. After that, one of those two spheres is brought into contact with the third sphere that carries the charge 93; those two are then separated as well. ROJS a) What is the final charge on the third sphere?60 SS μC sf60 s60 s ssf60 ssfo ssf603 60 ssf60 ssi

03. The distance between two charges q1 = + 2 μC and q2 = + 6 μC is 15.0 cm. Calculate the distance from charge q1 to the points on the line segment joining the two charges where the electric field is zero. Express your answer in cm with 3 - significant figures.