Professor Feldmann's lectures on electricity

What is electricity?

Our society is powered by electricity. Just have a look around: transportation by electric cars, street lighting, mobile phones and the internet. Our homes have wall sockets to connect us with the power supply. A comfortable life without electricity is unthinkable. But what is electricity?

Maxwell's Equations

The Scottish scientist James Clerk Maxwell made a study of both Ampère’s and Faraday’s experiments. Maxwell wondered whether a strictly mathematical description could be given from the newly discovered electromagnetic phenomena.

Faraday's Law

Faraday’s law is, together with Ampère’s law, one of the fundamental laws in electromagnetism. It describes how a time varying magnetic field can induce an electromagnetic force.

Technical publications from Schneider-Electric

The basics for the power engineer in high quality documents

Ampère' Law

Ampère’s Law is one of the fundamental laws in electromagnetism. It describes the relationship between an electrical current and the magnetic field created by that current. Let me tell you about how Ampère’s Law was discovered, explain how it works and how we can make use of it in practice.

50 and 60 Hertz, 230 Volt AC

Why do we use 50 or 60 Hz as power system frequency, why is it 230Volt AC

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