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Abhisar

  • one year ago

Brain Teaser ;) Four wires each of length 2.0 m, are bent in four loops as shown below. All of them are suspended in uniform magnetic field separately. All four carries same current, which of the following statement is correct?

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  1. Abhisar
    • one year ago
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    |dw:1442123205653:dw|

  2. Abhisar
    • one year ago
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    \(\bf Statements\) a) Torque acting on loop P is greatest. b) Torque acting on loop S is greatest. c) Torque acting on all is same. d) Torque on R is greatest. e) Torque on Q is greatest.

  3. anonymous
    • one year ago
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    do you know how to derive torque formula?

  4. Abhisar
    • one year ago
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    Yes, I do. I have posted this question just to share c:

  5. IrishBoy123
    • one year ago
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    |dw:1442137721996:dw|

  6. Abhisar
    • one year ago
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    @irishboy123 all the loops are suspended in same magnetic field one by one.

  7. Abhisar
    • one year ago
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    You are not given with the magnitude or direction of field.

  8. IrishBoy123
    • one year ago
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    lol!! i geddit now :-). my maths kept crashing. damned fine question, sir

  9. IrishBoy123
    • one year ago
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    i an put a pretty generalish proof here when this is done....

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