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Mashy

  • 4 years ago

Problem on 3 straight wires carrying current..Please see the attachment and help me out

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  1. Mashy
    • 4 years ago
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    I believe.. regardless of what the current direction or for that matter the magnitude in the middle wire is, the answer should be zero! . But not in the options!

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  2. Mashy
    • 4 years ago
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    I think the problem is wrong, it should be calculate the force on the conductor C

  3. Mashy
    • 4 years ago
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    Please check this one http://faculty.kfupm.edu.sa/phys/kuhaili/PHYS102Exams_T111/Chapter29.pdf question number 23.. even that is wrong ?.. cause regardless of what direction or magnitude current is.. net force has to be zero!

  4. Ishaan94
    • 4 years ago
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    no, if current in wire 2 is in the opposite direction to current in wire 1. the net force on 3 would be zero.

  5. Ishaan94
    • 4 years ago
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    But you also need a certain magnitude to make it zero.

  6. Mashy
    • 4 years ago
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    No the question is, what is the net force on WIRE 2, the middle wire.. As long as the current in side 2 wires are same and in same direction, the force on wire 2 will always be zero!

  7. Ishaan94
    • 4 years ago
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    \[\frac{\mu L I_2}{2\pi \cdot \frac12 } = \frac{\mu L I_1}{2\pi \cdot 1} \implies I_2 = \frac{I_1}{2}\]

  8. Ishaan94
    • 4 years ago
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    Hmm you said Q23 right?

  9. Ishaan94
    • 4 years ago
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    Read the question again.

  10. Ishaan94
    • 4 years ago
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    Q.23

  11. Ishaan94
    • 4 years ago
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    mashy?

  12. Mashy
    • 4 years ago
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    yea one second m here!!!

  13. Mashy
    • 4 years ago
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    oh yea.. in the question 23 its the WIRE 3.. correct.. there also i read as wire 2.. I am sorry!!.. you are right .. !!

  14. Ishaan94
    • 4 years ago
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    ohh okay. so you have decided to get in physics? or these questions are for college test?

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