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Question
The dipole moment of a dipole in a 300-N/C electric field is initially perpendicular to the field, but it rotates so it is in the same direction as the field. If the moment has a magnitude of 2 x10-9C.m the work done by the field is:
A) -12 x10-7 J
B) -6 x10-7J
C) 0 J
D) 6 x10-7J
E) 12 x10-7J
Answer
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