Here is a cylinder on whose surfaces there is an electric field whose direction is vertically upward, but whose magnitude varies as shown. The cylinder encloses: no net charge. net negative charge. net positive charge. There is not enough information available to determine whether or not there is net charge inside the cylinder.

A neutral conducting sphere has a cavity. A small charge q = +9μC is suspended inside the cavity with an insulating thread. What is the charge on the outer surface of the sphere at steady state (i.e. after a long time)? Conducting sphere a) The charge on the outer surface is zero. b) The charge on the outer surface is +9 μC. c) The charge on the outer surface is -9 μC. d) The charge on the outer surface is -18 μC. e) None of the answer choices is correct. Write your own answer. Write your answer the following way: Choice:______; Explanation:.........

A thick, conducting, spherical shell with inner radius 0.5 m and outer radius 1.5 m has a net charge 5 C. Also, there is a 3 C point charge at the center as shown. Calculate the surface charge density on the outer surface of the thick conducting shell. Answer in C/m² (Coulomb per square meter). 5 С 3 C 0.5 m 1.5 m

Problem 6:   A conducting sphere of radius r1 = 0.18 m has a total charge of Q = 1.4 μC. A second uncharged conducting sphere of radius r2 = 0.42 m is then connected to the first by a thin conducting wire. The spheres are separated by a very large distance compared to their size. What is the total charge on sphere two, Q2 In coulombs

A nonconducting, thin plane sheet of charge carries a uniform charge per unit area of 5.20 µC/m2 as in the figure below.(a) Find the electric field at a distance of 8.70 cm from the plate.(b) Explain whether your result changes as the distance from the sheet is varied. E

A small plastic ball of mass m = 3.00 g is suspended by a string of length L = 17.0 cm in a uniform electric field, as shown in the figure below. If the ball is in equilibrium when the string makes a ? = 17.0° angle with the vertical as indicated, what is the net charge on the ball? answer in uc

A small plastic ball of mass m = 3.00 g is suspended by a string of length L = 17.0 cm in a uniform electric field, as shown in the figure below. If the ball is in equilibrium when the string makes a e = 13.5° angle with the vertical as indicated, what is the net charge on the ball? E = 1.00 × 10³ N/C L