A 2 A current carrying straight metal wire of resistance 1 , resistivity 2 10⁻⁶ m , area of cross-section 10 ~mm ^2 and mass 500 ~g is suspended horizontally in mid air by applying a uniform magnetic field B . The magnitude of B is _____ 10

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A 2 A current carrying straight metal wire of resistance 1 , resistivity 2 10⁻⁶ m , area of cross-section 10 ~mm ^2 and mass 500 ~g is suspended horizontally in mid air by applying a uniform magnetic field B . The magnitude of B is _____ 10⁻¹ ~T (given, g =10 ~m / s ^2 ).

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aligned & R = A 2 10⁻⁶ 10⁻⁵ =1 =5 & mg = Bi aligned B = mg i = 5 2 5 =0.5=5 10⁻¹ Tesla

A 2 A current carrying straight metal wire of resistance 1 , resistivity 2 10⁻⁶ m , area of cross-section 10 ~mm ^2 and mass 500 ~g is suspended horizontally in mid air by applying a uniform magnetic field B . The magnitude of B is _____ 10⁻¹ ~T (given, g =10 ~m / s ^2 ).

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