Consider three charges X, Y and Z, with the same charge magnitude Q. A closed surface S encloses the three charges, and the net flux through S is inward. If Z is positively charged, which of the following is correct?  A. X = Y = +Q  B. X = +Q; Y = -Q  C. X = -Q; Y = +Q  D. X = Y = -Q

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

A conducting spherical shell of inner radius r1 and outer radius r2 has a charge Q on it. An additional charge, also Q, is en added to the sphere. What is the resulting charge per unit area on the outer surface of the sphere? 2 b. No answer given is correct. 4m(r₂ - r₁)² a. C. 2 47(1₂)² d. 2m(r^₂)²

A 6.6-μC charge is placed at the origin and a second charge is placed on the x-axis at x = 0.1 m. If the resulting force on the second charge is 5.7 N in the positive x-direction, what is the value of its charge? a. 1.0 μC b. 1.0 nC c. –1.0 μC d. –1.0 nC e. 0 μC