Why Is EMF Induced Only in One Direction in a Moving Conductive Square?

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SUMMARY

The discussion centers on the phenomenon of electromotive force (EMF) induction in a moving conductive square within a magnetic field. When the conductive layer moves forward in a magnetic field directed vertically upward, EMF is induced only in the left-right plane, not the forward-backward plane. The relevant formula for calculating EMF is E = (BAN)/t = BLV * sin(x), where the angle x is critical in determining the direction of induced EMF. The right-hand rule is applied to explain the orientation of the induced current, confirming that the EMF aligns with the left-right plane due to the specific motion and magnetic field configuration.

PREREQUISITES
  • Understanding of electromagnetic induction principles
  • Familiarity with the right-hand rule for current direction
  • Knowledge of the formula E = (BAN)/t = BLV * sin(x)
  • Basic concepts of magnetic fields and their interactions with conductive materials
NEXT STEPS
  • Study the right-hand rule in detail, focusing on its application in electromagnetic induction
  • Explore the concept of magnetic flux and its role in EMF induction
  • Investigate the differences in EMF induction in various geometries of conductive materials
  • Learn about Faraday's Law of electromagnetic induction and its mathematical implications
USEFUL FOR

Students of physics, particularly those studying electromagnetism, educators explaining electromagnetic induction concepts, and engineers working with conductive materials in magnetic fields.

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Homework Statement


If I move a SQUARE conductive layer in a forward direction, with a magnetic field pointing vertically upward why is an EMF only induced in the left-right plane NOT the forward-backward plane??

Homework Equations


The Attempt at a Solution


I would have thought that as BOTH planes are ppd to the mag field an EMF would be induced in both planes?? but this apparently is not the case

apparently the formula is E = (BAN)/t = BLV * sin(x)
what is the angle sin(x)
 
Last edited:
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If this doesn't make sense let me re-phrase it:

If I had a brick-shaped object (no hole in the middle) whose height was minimal and I moved it FORWARD.
The field is pointing into the page
attachment.php?attachmentid=46005&d=1333925976.png

why would the induced EMF be along the line AB and NOT CD as well (flux appears to being cut in both directions)?

Has it to do with the right hand rule?? (NOT the grip rule but RIGHT HAND dynamo rule)
thumb up (motion) finger into page and current to left (BA direction??)
 

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