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ECE 3342 Electromagnetic Theory II

ECE 3342 Electromagnetic Theory II. Section 1.1 Electric and Magnetic Fields. The Electric Field. is the Electric Field Intensity measured in Volts per meter (V/m). The Electric Field. + . The Force on a Charge. Unit Vector in the direction of . −. Charge (C) Electric Field (V/m)

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ECE 3342 Electromagnetic Theory II

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  1. ECE 3342Electromagnetic Theory II Section 1.1 Electric and Magnetic Fields

  2. The Electric Field is the Electric Field Intensity measured in Volts per meter (V/m).

  3. The Electric Field +

  4. The Force on a Charge Unit Vector in the direction of − Charge (C) Electric Field (V/m) Direction of the force

  5. The Force on a Charge + Charge (C) Electric Field (V/m) Direction of the force

  6. The Magnetic Field is the Magnetic Field Intensity measured in Amps per meter (A/m).

  7. The Force on a Moving Charge + Velocity of the particle. (N) Magnetic Permeability Cross-Product

  8. Rectangular Coordinates Clockwise “+” Anti-Clockwise “−”

  9. Cross Product + + +

  10. Electric Flux Density + −

  11. Electric Flux Density The Density of the lines of Electric Flux is Measured in Coulombs/ m2 (C/m2) is the Electrical Permittivity of the medium. = Relative Permittivity of the medium (aka the dielectric constant) = The Permittivity of free space.

  12. Electrical Permittivity Farads per meter (F/M) Air: Glass: Mica: Plexiglass®:

  13. Magnetic Flux Density

  14. Magnetic Flux Density The Density of the line of Magnetic Flus is: Measured in Webers per square meter (Wb/m2) is the Magnetic Permeability of the medium. = The Relative Permeability of the medium. = The Permeability of Free Space.

  15. Magnetic Permeability Henries per meter (H/M) Air: Machine Steel: Iron:

  16. Conductivity Electric Field Intensity (V/m) Conductivity (Siemens/m, mhos/meter, Ω-1m-1) Current Density (Amps/ square meter, A/m2)

  17. Conductivity Free Space: Air: Copper: (Ω-1m-1) Mica: (Ω-1m-1) Silicon: (Ω-1m-1)

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