The phenomenon of electromagnetic induction in paintings

The physical essence of the phenomenon of electromagnetic induction: the induction current increases in wires when the magnetic flux changes through the wire circuit. Induction current also increases in a wire moving in a magnetic field. In this case, the magnetic flux changes in a loop formed by a closed circuit. If the wire is not closed, there will be no induced current in it, but an emf will appear. induction. The value of EMF induction depends on the rate of change of the magnetic flux.
When the conducting frame rotates in a magnetic field, an emf appears in it. electromagnetic induction. The operation of electric generators is based on this. The effect of transformers — electrical machines for changing (transforming) voltage in alternating current circuits — is based on the phenomenon of mutual induction. The action of chokes is based on the phenomenon of self-induction.
The slides shown below are taken from the physics filmstrip The Phenomenon of Electromagnetic Induction. The filmstrip is divided into three sections.In the first section the history of the discovery of the phenomenon of electromagnetic induction is shown and told, in the second the physical essence of this phenomenon is very clearly explained, in the third the most common options for its application.