Peak current flowing in a circular metal loop?

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SUMMARY

The discussion centers on understanding the relationship between magnetic field strength (B) and current (I) in a circular metal loop. The participant expresses confusion regarding their notes and the relevant equations. They seek guidance on how to apply these equations effectively. The conversation emphasizes the importance of clarity in communication and understanding foundational concepts to facilitate assistance.

PREREQUISITES
  • Understanding of electromagnetic theory, specifically Ampère's Law
  • Familiarity with the Biot-Savart Law
  • Basic knowledge of circular loops in physics
  • Ability to interpret and manipulate equations related to magnetic fields
NEXT STEPS
  • Study Ampère's Law and its applications in circular loops
  • Learn the Biot-Savart Law and how it relates to current and magnetic fields
  • Practice solving problems involving magnetic fields generated by circular currents
  • Review physics problem-solving strategies to improve clarity and organization in notes
USEFUL FOR

Students studying electromagnetism, physics educators, and anyone seeking to deepen their understanding of magnetic fields in relation to electric currents.

Mattman182
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Homework Statement


em question.png


Homework Equations


I have some equations relating B to I but I don't really know if they are useful

The Attempt at a Solution


I actually don't even know where to begin on this, my notes are confusing and vague :(
 
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Mattman182 said:
I have some equations relating B to I but I don't really know if they are useful
Well pick one and see how far you can get ..
Mattman182 said:
I actually don't even know where to begin on this, my notes are confusing and vague :(
Ineresting but not all that relevant to potential helpers. If we want to help you, we need to know what you know in this context, so we can nudge you in the right direction.

Perhaps you want to read the PF guidelines.
 
The book claims the answer is that all the magnitudes are the same because "the gravitational force on the penguin is the same". I'm having trouble understanding this. I thought the buoyant force was equal to the weight of the fluid displaced. Weight depends on mass which depends on density. Therefore, due to the differing densities the buoyant force will be different in each case? Is this incorrect?

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