Calculating Electric Field: Solving for a Moving Rod

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Homework Help Overview

The discussion revolves around calculating the electric field generated by a moving rod within a magnetic field. The original poster presents a scenario involving a rod that generates an emf while moving through a magnetic field, seeking clarification on how to find the electric field in this context.

Discussion Character

  • Exploratory, Assumption checking

Approaches and Questions Raised

  • Participants question the clarity of the original question, particularly regarding the orientation of the rod and the magnetic field. There is a discussion about the relevance of the rod's width and its motion relative to the magnetic field.

Discussion Status

The discussion is ongoing, with participants providing guidance on clarifying the problem setup. Some have suggested that the original poster should include more details or a diagram to better illustrate the situation. There is no explicit consensus on the approach to take, but there is an exploration of different interpretations of the problem.

Contextual Notes

Participants note the absence of information regarding the rod's width and its orientation in relation to the magnetic field, which may affect the calculations. The original poster's mathematical difficulties are acknowledged, but specific assumptions remain unaddressed.

whitetigerboy56
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can anybody explain how to find electric field? :confused: my math isn't working out for me and i keep getting my answers wrong.


A moving rod is 13.2 cm long and generates an emf of 120 mV while moving in a 0.97 T magnetic field.

What is the electric field in the rod?


thanks :cool:
 
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Your question isn't very clear.
How is the rod oriented in its motion? What direction is the magnetic field?
Maybe you should rewrite the question exactly as it is written and either include a diagram, or give a clear description of what's happening.
 
V=Ed
voltage equals to electric field times displacement

the magnetic field is irrelevant here
 
Your right vincentchan.
I was thinking that the rod might have some width, in which it would matter how the rod was moving wrt to the magnetic field. But I guess since none is given the rod is assumed to have no width so the distance is not ambiguous.
 

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