11. If an electric field of magnitude 25 V/m makes an angle of 30° with a path of length 10 m, then the integral of E·dl over this path has a value
(A) 318 V
(B) −318 V
(C) 125 V
(D) 217 V
(E) 150 V.
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統計: 尚無統計資料
統計: 尚無統計資料