1. [0/8 Points] DETAILS PREVIOUS ANSWERS MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Consider two concentric conducting spheres. The outer sphere is hollow and initially has a charge Q, = -80 deposited on it. The inner sphere is solid and has a charge Q, = +2Q on it. (a) How much charge is on the outer surface? X Q How much charge is on the inner surface? x Q (b) Suppose a wire is connected between the inner and outer spheres. Electrostatic equilibrium is established. How much charge is on the outer surface of the outside sphere? Q How much is on the inner surface? Q How, if at all, does the electric field at the surface of the inside sphere change when the wire is connected? O It changes from a finite value to a greater value. O It does not change at all. It changes from a finite value to a lesser nonzero finite value. O It changes from a finite value to zero. (c) Suppose we return to the original conditions in (a), with +2Q on the inner sphere and -8Q on the outer. We now connect the outer sphere to ground with a wire and then disconnect it. How much total charge will be on the outer sphere? Q How much charge will be on the inner surface of the outer sphere? Q How much will be on the outer surface of this sphere? Q Submit Answer2. [0/1 Points] DETAILS PREVIOUS ANSWERS MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A cylinder of diameter 1.72 m is in a region where the electric field is as shown in the figure below. If E, = 39.1 N/C and E, = 23.0 N/C, what is the net flux through the two end faces of the cylinder? Note that the diagram is not to scale. X How is the flux defined in terms of the electric field, area of the surface, and the angle between the normal to the surface and the electric field direction? What is the direction of the normal for the left face? What is the direction of the normal for the right face? N . m2/C E.3. [-/2 Points] DETAILS MY NOTES ASK YOUR TEACHER PRACTICE (a) The electric field in a certain region is E = (-4.0k) N/C. Determine the electric flux due to this field through an area represented by the vector A = (3.51 - 7.5k) m. N . m2/c (b) Determine the flux due to the same electric field when the surface orientation has changed such that the area is now represented by the vector A = (3.51 - 7.5j) m2. N . m 2/ c5. [0/1 Points] DETAILS PREVIOUS ANSWERS MY NOTES ASK YOUR TEACHER PRA A very long, thin wire has a uniform linear charge density of 27 pC/m. What is the electric field (in N/C) at a distance 7.0 cm from the wire? (Enter the magnitude.) X N/C7. [1/2 Points] DETAILS PREVIOUS ANSWERS MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER When a charge is placed on a metal sphere, it ends up in equilibrium at the outer surface. Use this information to determine the electric field (in N/C) of -2.0 pC charge put on a 9.0 cm radius aluminum spherical ball at the following two points in space. (Enter the radial component of the electric field.) (a) a point 4 cm from the center of the ball (an inside point) E =0 N/Ci (b) a point 11 cm from the center of the ball (an outside point) E = N/CF