A 2 5 m long straight wire having mass of 500 g is suspended in mid air by a uniform horizontal magnetic field B If a current of

Question

A 2 5 m long straight wire having mass of 500 g is suspended in mid air by a uniform horizontal magnetic field B If a current of 4 A is passing through the wire then the magnitude of the field is Take g 10 m s a 0 5T b 0 6 T c 0 25 T d 0 8 T of the 9 8 A magr is sw 15 cm be ad a

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