Solving for I: A Puzzling Problem

  • Thread starter pat666
  • Start date
In summary, the conversation is about a homework problem involving a magnetic field (B), length (L), velocity (v), resistance (R), and current (I). The attempt at a solution provided an incorrect answer of 0.0043A, which was later corrected to 0.0427A. However, the problem still remained unsolved due to a mistake in considering the resistance of the whole loop instead of just the length being calculated. The correct calculation involves using the formula R=(3.5*8)/40 to find the resistance of the specific length.
  • #1
pat666
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Homework Statement



attached

Homework Equations





The Attempt at a Solution


I=BLv/R=.0043A which is obviously wrong, not sure why though?
 

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  • #2
pat666 said:

Homework Statement



attached

Homework Equations





The Attempt at a Solution


I=BLv/R=.0043A which is obviously wrong, not sure why though?
parta=4.274A
partb=clockwise
partc=0A
partd=no direction
parte=4.273A
partf=anti-clockwise...
you didn't convert cm unit into meter...hope this was helpful...
 
  • #3
if that's right than I must just have a wrong exponent somewhere
 
  • #4
mind telling me how you got that because I checked mine and I keep getting 0.00427A??
 
  • #5
yupe...you correct...its 0.0427...sorry for previous answer and inconvinience...so wats the problem now...you getting the answer...
 
  • #6
No,thats not the answer, I tried that but it tells me its incorrect.
 
  • #7
here the resistance 3.5ohm is of the whole loop.But,we have to consider resistance of only the length of the side which we are considering in calculation...
R=(3.5*8)/40.
now do calculation and hope you will get the answer... :)
 

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