Question:medium
A straight wire of mass \(250\,\text{g}\) and length \(2.5\,\text{m}\) carries a current of \(4\,\text{A}\). It can be suspended in mid air by a uniform horizontal magnetic field of magnitude:
A straight wire of mass \(250\,\text{g}\) and length \(2.5\,\text{m}\) carries a current of \(4\,\text{A}\). It can be suspended in mid air by a uniform horizontal magnetic field of magnitude:
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For a current-carrying conductor in magnetic field, maximum force occurs when wire is perpendicular to field: \(F = BIL\).
Updated On: May 6, 2026
- \(0.145\,\text{T}\)
- \(0.245\,\text{T}\)
- \(0.625\,\text{T}\)
- \(2.245\,\text{T}\)
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The Correct Option is B
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