本题目来源于试卷: Magnetism Magnetism，类别为 IB物理学
[问答题]
In a particular region of s*7 )9 ju2 qk3., mja jflkqawnic(7lvgpace there is a un, y*xe-ptvak. fas 28riform magnetic field $\vec{B}$. Outside this region, B = 0 Can you inject an electron from outside into the field perpendicularly so that it will move in a closed circular path in the field? What if the electron is injected near the center?
参考答案:
No,
although when an electron is injected perpendicularly into a region of uniform
magnetic field, the electron is forced to travel along a curve in the shape of
a perfect circle, the electron would travel in a path that is only half of a
circle and at that point it would come back out of the magnetic field and head
back in the direction it came. Yes, if
an electron were injected into the middle of a large region of space occupied
by a perpendicular magnetic field, the electron could travel in a closed circular
path.
本题详细解析:
暂无
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