Subject: General Science
Book: NCERT Physics Class 12
Changing magnetic fields produce electric currents.
- **Faraday’s Laws**:
- Relationship between changing flux and induced EMF.
- **Lenz’s Law**:
- Determines the direction of induced current.
- **Inductance**:
- Self-induction and mutual induction concepts.
**Possible Exam Questions:**
1. State and explain Faraday’s Laws of electromagnetic induction.
2. What is Lenz’s Law? How does it relate to conservation of energy?
3. Define self-inductance and mutual inductance.
4. Derive the expression for energy stored in an inductor.
5. Explain how transformers work using electromagnetic induction.
What type of electromagnetic radiation has the longest wavelength?
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