A rough inclined plane inclined at angle 37° with horizontal, has a metallic wire of length 20cm with its length bot to length, of inclined plane ( μ = 0.1) When a current of i is passing through the wire and a magnetic field is applied normal to the plane upwards, the wire starts moving up with uniform velocity for B = 0.5T. Then find the magnitude of current i, (mass of the wire=50g)

A rough inclined plane inclined at angle 37° with horizontal, has a m

1.	A rough inclined plane inclined at angle 37° with horizontal, has a metallic wire of length 20cm with its length bot to length, of inclined plane ( μ = 0.1) When a current of i is passing through the wire and a magnetic field is applied normal to the plane upwards, the wire starts moving up with uniform velocity for B = 0.5T. Then find the magnitude of current i, (mass of the wire=50g)
Answer» Solution : When the WIRE is in EQUILIBRIUM `Bil= MG (sin theta + mucostheta)` Bil= `mg(sintheta+μcostheta)` `=5xx10^(-2)xx10(3/5+0.1xx4/5)i=(10^(-1)xx3.4)/(10^(-1))=3.4A`

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