Artificial Magnetic Fields — Electromagnetism (Physics Gr12)

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Homework Help Overview

The discussion revolves around the topic of electromagnetism, specifically focusing on the magnetic field generated by two parallel conductors carrying current. The original poster expresses confusion regarding the magnetic field strength at a midpoint between the wires under different current directions.

Discussion Character

  • Exploratory, Conceptual clarification

Approaches and Questions Raised

  • Participants discuss the application of the right-hand rule and suggest visualizing the magnetic field lines around the conductors to understand the interactions at the midpoint.

Discussion Status

The conversation has progressed with some participants offering guidance on how to visualize the magnetic fields, indicating a productive direction in the discussion. However, there is no explicit consensus on the interpretations of the magnetic field strengths yet.

Contextual Notes

The original poster's confusion suggests a need for clarification on the principles governing magnetic fields created by parallel currents, particularly in relation to their directions. No additional constraints or specific homework rules are mentioned.

randomstu1997
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Homework Statement


Two parallel conductors each carry 10 A of current in the same direction.
a) What is the magnetic field strength at the midpoint between these wires? (answer = 0T)
b) What is the field strength at the same point if the current ran in opposite directions? (answer = 4.0x10^-4T)

I am very confused and any help would be greatly appreciated
 
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Are you familiar with the right hand rule..

right_hand_rule.jpg


Make some drawings of the magnetic field with two wires.
 
Yes I am familiar with all three of them
 
Then I suggest drawing two wires "end on" and adding circular B field lines around each. See what happens in the middle.
 
Thanks, got it
 

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