1. The document discusses electromagnetic induction, which was discovered by Faraday in 1831. It describes how a changing magnetic field can induce an electric current in a nearby conductor.
2. Electromagnetic induction is the fundamental principle behind many modern technologies like electric guitars, generators, and the electric power grid. It is an important concept in electromagnetism.
3. Lenz's law provides a way to determine the direction of induced currents based on the principle that an induced current will generate a magnetic field that opposes the original change in magnetic flux that caused it.
1. The document discusses electromagnetic induction, which was discovered by Faraday in 1831. It describes how a changing magnetic field can induce an electric current in a nearby conductor.
2. Electromagnetic induction is the fundamental principle behind many modern technologies like electric guitars, generators, and the electric power grid. It is an important concept in electromagnetism.
3. Lenz's law provides a way to determine the direction of induced currents based on the principle that an induced current will generate a magnetic field that opposes the original change in magnetic flux that caused it.