2016年AP电磁学简答题真题+答案+PDF下载
E&M.1.
Two point charges,q1 and q2, are fixed in place on the x-axis at positions
x1=-1.00m and x2=+0.50m,respectively. Charge q2 has a value of+2.0nC. Values of electric potential are illustrated by the given equipotentials in the diagram shown above, which is drawn to scale.
(a) Calculate the value of q1.
(b) At point C on the diagram, draw a vector representing the direction of the electric field at that point.
(c) Calculate the approximate magnitude of the electric field strength at point D on the diagram.
(d) The equipotential labeled 0 volts is the cross section of a nearly spherical surface. Calculate the electric flux for this surface.
(e) A proton is placed at point A and then released from rest.
i. Calculate the work done by the electric field on the proton as it moves from point A to point E.
ii. Calculate the speed of the proton when it reaches point E.
(f) An electron is released from rest at point B. Which of the following indicates the direction of the initial acceleration, if any, of the electron?
____Up ____Down
____Left ____Right
____Into the page ____Out of the page
____The direction is undefined since the acceleration is zero.
Justify your answer.
2016年AP电磁学简答题真题余下省略！
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