How can a thin beam of moving alpha particles is able to create a magnetic field around it like that of a straight current carrying wire???
2018-01-14 5:37 pm
I know that current is due to movement of electron in a particular direction...but in this alpha particles beam there is no electron so no current and thus how can it produce magnetic field similar to a current carrying wire...
回答 (3)
2018-01-15 4:16 am
✔ 最佳答案
There is a current. Moving charges are a current. It doesn't have to be electrons. So a magnetic field is created. It wraps around the beam, just like with a wire. Since alpha particles are positive, magnetic field wraps in opposite direction. 
2018-01-14 5:45 pm
Alpha particles don't contain electrons, but they contain protons, which have an electric charge.
2018-01-14 5:40 pm
Because it is an electromagnetic wave front. Energy in one plane, magnetism in another plane.
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