Understanding Maxwells Equations and Faradays Law
Explore Maxwells Equations, Faradays Law, Lenzs Law, and Transformers in this comprehensive guide to electromagnetic principles. Learn the concepts, applications, and examples to deepen your understanding of electromagnetism.
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Presentation Transcript
Maxwells Equations Week 14 video 1
Maxwells Equations In this chapter, we will examine Faraday s and Amp re s laws
Faradays law Week 14 video 2
Faradays Law Electromotive force (voltage) induced by time-varying magnetic flux:
Faradays Experimental Setup Galvanometer Battery Coupled Coils https://en.wikipedia.org/wiki/Faraday's_law _of_induction#/media/File:Induction_experi ment.png
Lenzs Law Week 14 video 3
Guided Example, Lenzs Law Find the direction of current in a circuit below, if magnetic flux density B is given.
1. Negative sign just gives you direction of field B 2. Magnitude of B is increasing with time 3. Current induced in the loop I_ind will oppose the change in field B 4. That induced current will have its own field B_ind 5. B_ind will be in such direction to prevent B from increasing 6. This means that B_ind will be in the z direction (opposite direction from B) 7. Use RHR to find the direction of I_ind
Transformers Week 14 video 4
