asked in 科學其他:科學 · 1 decade ago




1 Answer

  • Anonymous
    1 decade ago
    Favorite Answer

    The electric particle is not positive. But the question says that it's positive.

    If your problem statement is right and the picture is wrong, the answer is (D)


    ps. The dierction of B is to enter the paper.

    If the picture is right and the statement is wrong, the answer is (c)

    Because it is a negative electric charge, the direction is opposite to positive one, in other words, the direction of it is right.(→)

    Source(s): Me
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