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Keshav Srivastav

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Keshav Srivastav
Keshav Srivastav
Asked: December 10, 2024In: Class 12 Physics

Difine magnetic susceptibility of a material. Name two elements, one having positive susceptibility and the other having negative susceptibility. What does nagative susceptibility signify?

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 ...

chapter 5 magnetism and matterclass 12 physicsdifine magnetic susceptibility of a materialshort answer questions
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Keshav Srivastav
Keshav Srivastav
Asked: December 10, 2024In: Class 12 Physics

State two characterstic properties distinguishing the behaviour of paramagnetic and diamagnetic materials.

(i) Diamagnetic substances, when placed in a non-uniform magnetic field, tend to move from stronger region of the field to the weaker region. On the other hand, paramagnetic substances move from weaker region of the field to the stronger region.

chapter 5 magnetism and matterclass 12 physicsdistinguishing the behaviour of paramagnetic and diamagnetic materials
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Keshav Srivastav
Keshav Srivastav
Asked: December 10, 2024In: Class 12 Physics

A short bar magnet place with its axis at 30° to a uniform magnetic field of 0.02 T experiences a torque of 0.060 N m. (i) Calculate magnetic moment of the magnet, and (ii) find out what orientation of the magnet corresponds to its stable equilibrium in the magnetic field.

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 ...

calculate magnetic moment of the magnetchapter 5 magnetism and matterclass 12 physicsshort answer questions
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Keshav Srivastav
Keshav Srivastav
Asked: December 10, 2024In: Class 12 Physics

Relative permeability of a material .u^r = 0.5. Identify the nature of the magnetic material and wright its relation to magnetic susceptibility.

The meterial is a diamagnetic material and its magnetic susceptibility x = u^r – 1 = 0.5 – = – 0.5 Class 12 Physics Chapter 5 Magnetism and Matter Session 2024-2025.

chapter 5 magnetism and matterclass 12 physicsidentify the nature of the magnetic
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Keshav Srivastav
Keshav Srivastav
Asked: December 10, 2024In: Class 12 Physics

A ball of superconducting material is dipped in liquid nitrogen and placed near a bar magnet. in which direction will it move and why?

A superconductor behaves as an ideal diamagnetic substance. Hence, it moves away from the bar magnet when it is placed near the bar magnet. Class 12 Physics Chapter 5 Magnetism and Matter Session 2024-2025.

chapter 5 magnetism and matterclass 12 physicsdiamagnetic repulsion from the bar magnet
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