Question

does not match any of those given, then write your answer on the blank space inFor problens WhErE YOL eu write in answers, correct units (SI system) must be includ answer, if the number is correct. ed. Leaving off the units will ost you 1/3 of the points for that 1. The sketch at the right shows some lines representing a section of an electric field The space between the lines at x is 3 times what it is at y and the space between the lines at z is 1.5 times what it is at y. If the magnitude of the electric field at y is 4.65 x 10" N/C, what is it at x and z? a. 1.40 x 1013 N/C and 3.10 x 1012 N/C c. 1.55 x 1012 N/C and 9.30 x 1012 N/C b. 1.55 x 1012 N/C and 3.10 x 1012 N/C d. 1.40 x 1013 N/C and 9.30x1012 N/C 2. What is the force (magnitude and direction) on an electron that is placed at point y? a. 7.44 x 107 N, same with the electric field b. 7.44 x 10'N, opposite to the electric field N, opposite to the electric field field d. 2.91 x 10 M2 c. 2.91 x 107N, same with the electric f 91 x 107 N, same with the electric Mi 58 6kg and radius 13.2 em is concentric with a thin sphericl shel e m245 grams is at a distance of 22.8 cm from force on m.

Answer 1

1. The field strength is proportional to the line density.

Thus, as the space between lines at x is 3 times, the density is one third to that at y. Thus, Electric field is also 1/3 of that at y = 1.55*10^(12) N/C. Same way, Electric field at z will be 2/3 times of that at y = 3.1*10^(12) N/C

Option (b)

2. Force = q*E = 1.6*10^(-19) * 4.65*10^(12) = 7.44*10(-7) N

Since proton is positive in charge, the direction will be with the electric field.

Option (a)