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Mind Map: Electromagnetic Induction | Physics Class 12 - NEET PDF Download

Mind Map: Electromagnetic Induction | Physics Class 12 - NEET

The document Mind Map: Electromagnetic Induction | Physics Class 12 - NEET is a part of the NEET Course Physics Class 12.
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FAQs on Mind Map: Electromagnetic Induction - Physics Class 12 - NEET

1. What is electromagnetic induction?
Ans.Electromagnetic induction is the process by which a changing magnetic field within a closed loop of wire induces an electromotive force (EMF) or voltage in the wire. This phenomenon is the basis for many electrical devices, such as generators and transformers.
2. Who discovered electromagnetic induction and when?
Ans.Electromagnetic induction was discovered by Michael Faraday in 1831. His experiments demonstrated how a changing magnetic field could produce electric current, leading to the formulation of Faraday's law of induction.
3. What are Faraday's laws of electromagnetic induction?
Ans.Faraday's laws of electromagnetic induction consist of two main principles: the first law states that an electromotive force is induced in a circuit when the magnetic flux linked with it changes. The second law quantifies this induced EMF, stating it is directly proportional to the rate of change of magnetic flux.
4. What are some practical applications of electromagnetic induction?
Ans.Electromagnetic induction has numerous practical applications, including in electric generators, where mechanical energy is converted into electrical energy, transformers for voltage conversion, and induction cooktops that heat pots and pans through magnetic fields.
5. How does Lenz's law relate to electromagnetic induction?
Ans.Lenz's law states that the direction of the induced current will always be such that it opposes the change in magnetic flux that produced it. This means that if the magnetic field through a loop increases, the induced current will flow in a direction that creates a magnetic field opposing the increase.
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