Carefully study the following plot of electric field E in N/C versus distance r in m and answer the questions that follow. The electric field is directed radially outward, and the variation of E with r is independent of direction. a) Select all the true statements. If none of them are true, select "None of the above." A. The electric field falls off as 1/r for r greater than R. B. All points at a given distance d from the origin are at the same electrostatic potential. C. The force on a positive charge placed at A points radially towards the origin. D. The above electric field could be that due to a negatively charged spherical shell. E. The work done by you to bring a point negative charge from infinity to A (it starts and finishes at rest) is negative. F. The electric potential is constant for r less than R. G. None of the above. b) Referring to the figure above, determine the work done by the electric field on a 2.55μ C charge moved from A to B.
Carefully study the following plot of electric field E in N/C versus distance r in m and answer the questions that follow. The electric field is directed radially outward, and the variation of E with r is independent of direction.
a) Select all the true statements. If none of them are true, select "None of the above."
A. The electric field falls off as 1/r for r greater than R.
B. All points at a given distance d from the origin are at the same electrostatic potential.
C. The force on a positive charge placed at A points radially towards the origin.
D. The above electric field could be that due to a negatively charged spherical shell.
E. The work done by you to bring a point negative charge from infinity to A (it starts and finishes at rest) is negative.
F. The electric potential is constant for r less than R.
G. None of the above.
b) Referring to the figure above, determine the work done by the electric field on a 2.55μ C charge moved from A to B.
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