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Introduction: Magnetic Field Video Lecture | Science Class 10
FAQs on Introduction: Magnetic Field Video Lecture - Science Class 10
| 1. What is a magnetic field? |  |
Ans. A magnetic field is a region around a magnet or a current-carrying conductor where its influence can be felt. It is the area where magnetic forces are exerted on other magnets or moving charges.
| 2. How is a magnetic field produced? | |
Ans. A magnetic field is produced by the movement of electric charges. In the case of a permanent magnet, the magnetic field is created by the alignment of the magnetic domains within the magnet. In the case of a current-carrying conductor, the magnetic field is produced by the circular movement of electrons.
| 3. What are the properties of a magnetic field? | |
Ans. The properties of a magnetic field include the ability to exert a force on other magnets or moving charges, the ability to attract or repel other magnets, and the ability to create a magnetic field around a current-carrying conductor.
| 4. How can a magnetic field be detected? | |
Ans. A magnetic field can be detected using a compass. A compass needle aligns itself with the magnetic field lines and points in the direction of the magnetic field. It can also be detected using a magnetic field sensor or a magnetometer.
| 5. What are the applications of magnetic fields? | |
Ans. Magnetic fields have various applications in our daily lives. They are used in electric motors, generators, transformers, MRI machines, magnetic levitation trains, and magnetic storage devices such as hard drives and credit cards. They are also used in compasses, speakers, and magnetic locks.
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