quick physics Q for angles (1 Viewer)

[sy37]

if the magnetic field is directed into the page, will the angle always be 90 when calculating the force on a nucleus? Any other times?

 

[InteGrand]

if the magnetic field is directed into the page, will the angle always be 90 when calculating the force on a nucleus? Any other times?

Depends on the direction (in 3D space) of the particle's motion.

 

[sy37]

Depends on the direction (in 3D space) of the particle's motion.

I remember a while ago reading that in some magnetic field set ups, the angle will always be 90?

 

[InteGrand]

I remember a while ago reading that in some magnetic field set ups, the angle will always be 90?

Is this in the context of particle accelerators?

 

[nancylime]

If you are given a diagram with the magnetic field as dots or crosses then yes, the angle will be 90 degrees (otherwise the field would be drawn as field lines).

 

[InteGrand]

If you are given a diagram with the magnetic field as dots or crosses then yes, the angle will be 90 degrees (otherwise the field would be drawn as field lines).

This obviously depends on which way the particle is moving. It'll be 90º if and only if the particle's velocity vector lies in the plane of the page (if the particle is also moving into the page say, then the angle won't be 90º).