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FAQs on Quick Revision: Electromagnetic Induction - Physics Class 12 - NEET

1. What is electromagnetic induction?
Ans. Electromagnetic induction is the process of generating an electric current in a conductor by changing the magnetic field around it. This is achieved by either moving the conductor through a magnetic field or by changing the magnetic field around the conductor.
2. How does electromagnetic induction work?
Ans. Electromagnetic induction works based on Faraday's law of electromagnetic induction. When a conductor is moved through a magnetic field or when the magnetic field around a conductor changes, it induces a voltage in the conductor, which then generates an electric current.
3. What are the applications of electromagnetic induction?
Ans. Electromagnetic induction has various practical applications. It is used in generators to produce electricity, in transformers to change the voltage of an alternating current, in induction cooktops for cooking, and in wireless charging systems for electronic devices.
4. What factors affect the magnitude of the induced current in electromagnetic induction?
Ans. The magnitude of the induced current in electromagnetic induction depends on several factors. These include the strength of the magnetic field, the velocity of the conductor or the rate of change of the magnetic field, the angle between the conductor and the magnetic field, and the length and resistance of the conductor.
5. How is electromagnetic induction related to Michael Faraday?
Ans. Electromagnetic induction was discovered and formulated by the English scientist Michael Faraday in the early 19th century. Faraday's experiments and observations led to the development of the fundamental principles of electromagnetic induction, which revolutionized our understanding of electricity and laid the foundation for many technological advancements.
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