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第17講 Lesson 5: Steady electric currents
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L17A
L17A
Lesson 5: Steady electric currents
Outline
Current density
Convection currents
Conduction current: origin
Conduction current
Ohm’s law
L17B
Lesson 5: Steady electric currents
Current laws
Steady current
Non-conservative field sources
Electromotive force (emf)
Look at KVL again
L17C
Lesson 5: Steady electric currents
Equation of continuity
Charge dynamics in conductors
Boundary conditions
Governing equations for current density
BCs for steady current density
Example 5-3: two conducting materials
L17D
Lesson 5: Steady electric currents
Example 5-4: parallel plate capacitor
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