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ajprincess

Plzz help A wire of 1m long carries a current of 10A and makes an angle of 30degrees with the uniform magnetic field B=1.5T. Calculate the magnitude and the direction of the force on the wire.

  • one year ago
  • one year ago

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  1. ajprincess
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    |dw:1337316891433:dw| Am I right?

    • one year ago
  2. timo86m
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    I think you are right let me double check

    • one year ago
  3. ajprincess
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    ha k

    • one year ago
  4. timo86m
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    IL X B so it is ILB Sin(theta) so yes :)

    • one year ago
  5. ajprincess
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    Vat abt the direction? :)

    • one year ago
  6. timo86m
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    I think it will point into the screen let me check tho

    • one year ago
  7. experimentX
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    force will always be perpendicular to the plane containing the direction of magnetic field and the wire.

    • one year ago
  8. timo86m
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    but either way it will be perpendicular to both the Length of the wire and B

    • one year ago
  9. timo86m
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    |dw:1337272230240:dw| I think this is how it will look. At least in my mind.

    • one year ago
  10. timo86m
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    In that pic the force points away from screen.

    • one year ago
  11. timo86m
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    use right hand rule|dw:1337272446404:dw| think of your knuckles as L and tip of fingers as B and F is where your thumb points too. Sorry about drawing :P

    • one year ago
  12. timo86m
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    |dw:1337272618747:dw|

    • one year ago
  13. ajprincess
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    V need to use right hand rule or fleming's left hand rule? I remember that in the right hand rule the thumb points towards the direction of the current. Am I right? am nt sure?

    • one year ago
  14. timo86m
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    depends on situation

    • one year ago
  15. experimentX
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    these are all derivative of vector multiplication ...

    • one year ago
  16. timo86m
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    qVxB|dw:1337272984176:dw|

    • one year ago
  17. timo86m
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    qVxB the first term always curls into the second term Then use right hand rule Knuckles is first term, tip of fingers is second term and thumb is the product (force)

    • one year ago
  18. ajprincess
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    oh k. In both ways of u guys @timo86m and @experimentX and in my way the answer comes as the same

    • one year ago
  19. timo86m
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    Well you have to use your formula either way Sin(theta) *ILB but you need IL x B to know that L curls into B :)

    • one year ago
  20. ajprincess
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    Thanxxxx for the help.:)

    • one year ago
  21. timo86m
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    :D

    • one year ago
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