Imagine an x-y-z Cartesian coordinate system in space. A straight stream of prot

Question

Imagine an x-y-z Cartesian coordinate system in space. A straight stream of protons passes through this space along the +y-axis (x=0, z=0). What is the direction of the magnetic field at a point on the -x axis?

If the protons pass through the point(0,0,0) at a rate of 4.2e+10 s-1, what is the magnetic of the magnetic field generated by the beam at point (0,0,-2.8)(unit:m)?
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Imagine an x-y-z Cartesian coordinate system in space. A straight stream of protons passes through this space along the +y-axis (x=0, z=0). What is the direction of the magnetic field at a point on the -x axis? If the protons pass through the point(0,0,0) at a rate of 4.2e+10 s-1, what is the magnetic of the magnetic field generated by the beam at point (0,0,-2.8)(unit:m)?

Explanation / Answer

Aong negative z axis.

I = 4.2*0^10*1.6 *0^-19 = 6.72*1^-9 amp

B = uI/2 pi r = 4.8*10^-16 Tesla

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