Core of electromagnets are made of ferromagnetic material which has
low permeability and high retentivity
high permeability and low retentivity
low permeability and low retentivity
high permeability and high retentivity
Additional Questions
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For diamagnetic materials, magnetic susceptibility is |
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At a specific instant, emission of radioactive compound is deflected in a magnetic field. The compound can emit |
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The magnetic susceptibility of a paramagnetic material at –73°C is 0.0075 and its value at –173°C will be |
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A particle of charge –16 × 10–18 coulomb moving with velocity 10 ms–1 along the x–axis enters a region where a magnetic field of induction B is along the y–axis, and an electric field of magnitude 104 V/ m is along the negative z–axis. If the charged particle continues moving along the x–axis, the magnitude of B is |
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A magnetic needle is kept in a non–uniform magnetic field. It experiences |
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At certain place, the horizontal component of earth’s magnetic field is 3.0 G and the angle dip at the place is 30°. The magnetic field of earth at that location |
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Curie temperature is the temperature above which |
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Electromagnets are made of soft iron because soft iron has |
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If an electron and a proton having same momenta enter perpendicularly to a magnetic field, then |
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Core of electromagnets are made of ferromagnetic material which has |
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