In order to reduce eddy currents in the transformer. Class 12 Physics Chapter 7 Alternating current Session 2024-2025.
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No, because there is no change in magnetic flux in a d.c. circuit. Class 12 Physics Chapter 7 Alternating current Session 2024-2025.
As susceptibility of a magnetic material is – 2.6 × 10-⁵, the material is a diamagnetic material. two important properties of these materials are: (i) These are feebly repelled by a magnetic field and tend to move from stronger to ...
For definition, see point number 23 under the heading “Chapter At Glance”. Copper (a diamagnetic material) has negative susceptibility but aluminium (a paramagnetic material) has positive susceptibility. Nagative susceptibility signifies that the material is repelled in a magnetic field and ...
Here B = 0.02 T, θ = 30° and t = 0.060 N m (i) ∴ Magnetic moment of the magnet m = t/Bsinθ = 0.060/0.02 × 0.5000 = 6 A m² . (ii) For stable equilibrium of the magnet ...