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The Importance of Electromagnetics: Applications and Fundamental Concepts

Electromagnetics is a critical field of study with vast applications ranging from antennas and radars to optics and microwaves. Understanding the fundamental laws of electromagnetism, including electrostatics, magnetostatics, and electrodynamics, lays the groundwork for exploring its challenges and advancements. This discipline is essential for modern technology, as it involves the interaction of electric and magnetic fields, governing everything from motor and generator functionality to electromagnetic wave propagation. Dive into research areas and fundamental concepts that shape this fascinating field.

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The Importance of Electromagnetics: Applications and Fundamental Concepts

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Presentation Transcript

  1. Why Study Electromagnetics?

  2. Examples of Electromagnetic Applications

  3. Examples of Electromagnetic Applications, Cont’d

  4. Examples of Electromagnetic Applications, Cont’d

  5. Examples of Electromagnetic Applications, Cont’d

  6. Examples of Electromagnetic Applications, Cont’d

  7. Research Areas of Electromagnetics • Antenas • Microwaves • Computational Electromagnetics • Electromagnetic Scattering • Electromagnetic Propagation • Radars • Optics • etc …

  8. Why is Electromagnetics Difficult?

  9. What is Electromagnetics?

  10. What is a charge q?

  11. Fundamental Laws of Electromagnetics

  12. Four laws of electromagnetism

  13. Steps in Studying Electromagnetics

  14. SI (International System) of Units

  15. Units Derived From the Fundamental Units

  16. Fundamental Electromagnetic Field Quantities

  17. Three Universal Constants

  18. Fundamental Relationships

  19. Electrostatics • Charges make E fields and forces • charges make scalar potential differences dV • E can be found from V • Electric forces move charges • Electric fields store energy (capacitance)

  20. Magnetostatics • Currents make B fields • currents make magnetic vector potential A • B can be found from A • Magnetic forces move charges and currents • Magnetic fields store energy (inductance)

  21. Electrodynamics • Changing E(t) make B(x) • Changing B(t) make E(x) • Wave equations for E and B • Electromagnetic waves • Motors and generators • Dynamic Sun

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