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Magnetism: Magnetism and Matter Video Lecture | Physics Class 12 - NEET

FAQs on Magnetism: Magnetism and Matter Video Lecture - Physics Class 12 - NEET

1. What is magnetism and how does it relate to matter?

Ans.Magnetism is a physical phenomenon produced by the motion of electric charge, which results in attractive and repulsive forces between objects. It relates to matter as all materials can exhibit magnetic properties depending on the arrangement of their atoms and the presence of unpaired electrons.

2. What are the different types of magnets?

Ans.The different types of magnets include permanent magnets, which maintain their magnetic properties without external influence; temporary magnets, which act like magnets only in the presence of a magnetic field; and electromagnets, which are created by an electric current flowing through a coil of wire.

3. How do magnetic fields interact with materials?

Ans.Magnetic fields interact with materials based on their magnetic properties. Ferromagnetic materials, like iron, can become magnetized in the presence of a magnetic field, while diamagnetic materials are weakly repelled. Paramagnetic materials are attracted to magnetic fields but do not retain magnetic properties when the field is removed.

4. What is the significance of magnetic domains in materials?

Ans.Magnetic domains are small regions within ferromagnetic materials where the magnetic moments of atoms are aligned in the same direction. The alignment of these domains determines the overall magnetic behavior of the material. When external magnetic fields are applied, the domains can shift, leading to magnetization.

5. How can magnetism be applied in technology?

Ans.Magnetism is applied in various technologies, including electric motors, generators, magnetic storage devices (like hard drives), magnetic resonance imaging (MRI) in medical diagnostics, and in transformers for electrical power distribution. These applications exploit the properties of magnets and magnetic fields to perform work or store information.

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Sep 19, 2025 Last updated

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