Problem 26: A point charge is a distance d from the origin on the z-axis. Consid

Question

Problem 26: A point charge is a distance d from the origin on the z-axis. Consider two circular regions each with area A in the y plane. Region 1 is centered on the 2 axis and re- gion 11 is a distance d along the z-axis. How does the density of electric field lines compare for the two regions? Select One of the Following: (a) The density of electric field lines is the same for both re- gons. (b) The density of electric field lines is greater for region 1. (c) The density of electric field lines is greater for region II. Problem 27: The two thin concentric spherical shells each have uniform surface charge densities. The total charge on the inner shell is +Q and the total charge on the outer shell is Q. Which of the following best describes the direction of the electric field between the shells? Select One of the Following: (a) The electric field between the shells points radially outward from the center of the system. (b) The electric field between the shells points radially inward toward the center of the system. (c) The electric field between the shells points radially outward from the center of the system near the inner shell and changes direction to radially inward near the outer shell. (d) The electric field between the shells points radially inward from the center of the system near the inner shell and changes direction to radially outward near the outer shell. (e) The electric field lines are concentric circles around the inner shell

Explanation / Answer

i think that 26)B 27)B

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