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AB and CD are smooth parallel rails seperated by l and inclined at angle θ with the horizontal. If B is normal to the plane of the rails then force on conductor EF placed on the rails is
- Bil=mgtanθ
- Bil=mgsinθ
- Bil=mgcosθ
- equilibrium cannot be reached
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as seen from the image, in the direction of magnetic fieldFGravitational=FMagneticmgsinθ=i→l×→Bmgsinθ=ilB
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