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26.6 Maxwell's equations and electromagnetic waves
Maxwell's equations describe the behaviour of electric fields and magnetic fields; a more detailed introduction appears in post 25.12. Equations (1)-(4) (highlighted above) are Maxwell's equations in vector notation. Here E is an electric field, B is a ma
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26.5 Differential form of the Maxwell-Ampère law
This post is a sequel to post 26.4 so I suggest you read that first. In post 26.4, I expressed the Maxwell-Ampère law in terms of two definite integrals. In this post I am going to express it in a differential form. This is similar to what I did in post 2
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26.4 Maxwell-Ampère law
This is a sequel to post 26.03, so I suggest you read that first. Maxwell realised that Ampère's law applied only when an electric current, in a conductor enclosed by a magnetic field loop, was constant. If the current changes, for any reason, in the firs
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26.3 Ampère's law
Ampère's law considers the electric current, I, enclosed by a magnetic field, B, that forms a closed loop. In post 25.16, we saw how to calculate the magnetic field surrounding an electrical current using the Biot-Savart law. Now we are going to consider
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26.2 More about the simple harmonic oscillator
In post 18.6, I defined a simple harmonic oscillator as a system that was constantly exchanging potential energy and kinetic energy while conserving their sum. I then used the idea of a simple pendulum as an example to illustrate how this works. In post 2
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