10. An electric dipole with a dipole moment magnitude of p = 5.0 × 10⁻⁶ C·m is placed in a uniform electric field of magnitude E = 2.0 × 10⁵ N/C. The initial angle between the dipole moment
and the electric field
is 60°. How much work must an external agent do to turn the dipole 180° from its initial position?
(A) 0.5 J
(B) 1.0 J
(C) 1.5 J
(D) 2.0 J
(E) 0 J
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統計: 尚無統計資料
統計: 尚無統計資料