Point charge induced current on a conducting ring

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Discussion Overview

The discussion revolves around the induced current in a conducting copper ring when point charges pass through its center. Participants explore the relationship between the charge and the induced current, the placement of measurement contacts, and the configuration of the electrical circuit.

Discussion Character

  • Exploratory, Technical explanation, Conceptual clarification

Main Points Raised

  • One participant inquires about the equation that relates the charge Q to the induced current on the ring.
  • There is a question regarding the optimal placement of contacts to measure the induced current, specifically whether to use the inner radius, middle, or outer radius of the ring.
  • Another participant asks where the second contact should be placed to complete the electrical circuit, suggesting grounding as a possibility.
  • A later reply questions whether a current is indeed induced to flow around the ring, prompting further exploration of the concept.

Areas of Agreement / Disagreement

Participants have not reached a consensus on the specifics of the induced current, the measurement setup, or the nature of the current flow in the ring. Multiple viewpoints and questions remain open for discussion.

Contextual Notes

There may be limitations related to the assumptions about the system, such as the nature of the induced current and the effects of the point charges, which have not been fully explored or defined.

Caltechian
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Hello,
I have a conducting copper ring of inner radius a and outer radius b.
point charges Q pass through the centre of this ring for time dt.
so I guess I'm suppose to get a step function of induced current or something similar.

1)what is the equation relating the charge Q to the induced current on the ring?
2)where should I place the contacts to measure the induced current (inner radius / middle/ outer radius of the ring)?
3)one of the contacts is placed on the ring and goes to the electro-meter, where does the other contact go to get an electrical circuit? grounded?
thank you,
 
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Caltechian said:
Hello,
I have a conducting copper ring of inner radius a and outer radius b.
point charges Q pass through the centre of this ring for time dt.
so I guess I'm suppose to get a step function of induced current or something similar.

1)what is the equation relating the charge Q to the induced current on the ring?
2)where should I place the contacts to measure the induced current (inner radius / middle/ outer radius of the ring)?
3)one of the contacts is placed on the ring and goes to the electro-meter, where does the other contact go to get an electrical circuit? grounded?
thank you,

sketch attached.
 

Attachments

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Do you imagine that a current is induced to flow around the ring, or what?
 

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