As shown in figure, an N-turn electromagnet is to be used to lift a slab of iron
Question:
As shown in figure, an N-turn electromagnet is to be used to lift a slab of iron of mass M. The surface roughness of the iron is such that when the iron and the electromagnet are in contact, there is a minimum air gap of g min = 0.18 mm in each leg. The electromagnet cross-sectional area Ac = 32 cm and coil resistance is 2.8 ?. Calculate the minimum coil voltage which must be used to lift a slab of mass 95 kg against the force of gravity. Neglect the reluctance of the iron.
N-turn winding Electromagnet. cross-sectional arca A Iron slab, mass M
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The coil inductance is equal to ...View the full answer
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