Copyright © Michael Richmond.
This work is licensed under a Creative Commons License.
Magnetic Induction
This lecture is based on Serway, Sections 31.1 and 31.2.
It covers the generation of electric potential by changing
magnetic fields.
- Just as a changing electric field can produce a magnetic field,
a changing magnetic field can produce an electric field.
We call the latter effect magnetic induction.
- Magnetic induction is the basis for the commericial
generation of electricity, and for all electric motors.
Our modern civilization depends greatly upon magnetic induction!
- Faraday's Law states that the electromotive force around some
closed loop is equal to the time derivative of magnetic flux
through that loop.
- One may vary magnetic flux by changing
- the strength of a magnetic field
- the area of a loop
- the relative orientation of the loop and the field
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Copyright © Michael Richmond.
This work is licensed under a Creative Commons License.