| 1. Maxwell's equations in vacuum (contd..) |
| Ampere's law with Maxwell's corrections |
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Integrate over a surface whose boundary is a loop: |
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(12) |
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Use a mathematical identity (Stokes' theorem) |
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(13) |
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Relationship between magnetic field along a loop and the rate of change of magnetic flux through an open surface whose
boundary is the loop
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 is the conduction current |
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 is often called "displacement current", this is the
correction by Maxwell to Ampere's law |
