Understanding the Direction of Magnetic Field Lines to Coil Diagrams

AI Thread Summary
The discussion focuses on determining the direction of magnetic field lines in coil diagrams using Fleming's left-hand rule. Participants emphasize the importance of understanding the orientation of field lines for accurate analysis, particularly in exam scenarios. The rule aids in visualizing the relationship between current, magnetic field, and force, although the thumb is disregarded in this context. Clarifications on the application of the rule enhance comprehension of magnetic field behavior around coils. Mastery of these concepts is deemed essential for students in physics-related fields.
PPonte
Magnetic Field Lines Question

http://img101.imageshack.us/img101/9819/coil2sm.jpg

Could someone tell me which is the direction of these magnetic field lines and why?
 
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Thank you. This rule is very useful.
 
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