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Ferromagnetic Materials Video Lecture - Civil Engineering (CE)

FAQs on Ferromagnetic Materials Video Lecture - Civil Engineering (CE)

1. What are ferromagnetic materials?

Ans. Ferromagnetic materials are substances that have a strong attraction towards magnetic fields. They can be magnetized to become permanent magnets and retain their magnetism even after the external magnetic field is removed. Iron, nickel, and cobalt are common examples of ferromagnetic materials.

2. How do ferromagnetic materials become magnetized?

Ans. Ferromagnetic materials become magnetized when they are exposed to an external magnetic field. The alignment of the magnetic domains within the material changes, causing the individual magnetic moments to align in the same direction. This alignment results in the material acquiring a net magnetic moment and becoming magnetized.

3. What are magnetic domains in ferromagnetic materials?

Ans. Magnetic domains are small regions within a ferromagnetic material where the atomic magnetic moments are aligned in the same direction. These domains can vary in size and orientation within the material. In the absence of an external magnetic field, the domains are randomly oriented, resulting in a net magnetization of zero.

4. Can ferromagnetic materials lose their magnetism?

Ans. Yes, ferromagnetic materials can lose their magnetism under certain conditions. Heating the material to its Curie temperature, which is specific to each material, can cause the magnetic domains to lose their alignment, resulting in the loss of magnetism. Additionally, subjecting the material to a strong external magnetic field in the opposite direction can also demagnetize it.

5. How are ferromagnetic materials used in everyday life?

Ans. Ferromagnetic materials have various applications in everyday life. They are used in the production of electrical transformers, electric motors, and generators, where their magnetic properties are utilized for efficient energy conversion. Ferromagnetic materials are also essential in the manufacturing of magnetic storage devices such as hard drives and magnetic tapes.

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Jan 15, 2025 Last updated

Ferromagnetic Materials for Civil Engineering (CE)2025 is part of Civil Engineering (CE) preparation. The notes and questions for Ferromagnetic Materials have been prepared according to the Civil Engineering (CE) exam syllabus. Information about Ferromagnetic Materials covers all important topics for Civil Engineering (CE)2025 Exam. Find important definitions, questions, notes, meanings, examples, exercises and tests below for Ferromagnetic Materials.

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