Surface current on a spherical superconductor

In summary, a spherical superconductor is a type of material that exhibits zero electrical resistance when cooled below a critical temperature. This allows for the formation of surface currents, which are circular currents that flow along the surface of the material. These surface currents can create a protective barrier around the superconductor, shielding it from external magnetic fields. Additionally, they can be controlled and manipulated by applying external magnetic fields, making spherical superconductors potential candidates for use in advanced technologies such as magnetic levitation and high-speed transportation systems.
  • #1
gausswell
Homework Statement
Find the surface current on a spherical superconductor.
Relevant Equations
K=sigma * v
I need help with part b.
21926439f11214bdb3d781885d057ff2.png

My solution:
e632f985b3cb7405287859652045a98d.png

Have I done it right?
 
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  • #2
gausswell said:
Have I done it right?
Your work looks right to me.
 
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