Unit 12 · Magnetism and Electromagnetism
Chapter 12.3
Electromagnetic Induction and Faraday's Law
Hold a magnet still inside a coil and nothing happens; move it and a current appears from nowhere. It is not the field that makes current, but the change.
free · lesson 15 of 27
By the end
- 01Compute magnetic flux through a loop, including its sign from the chosen area vector
- 02Find the size of an induced emf from the rate of flux change
- 03Find the direction of the induced current with Lenz's law and explain it by energy conservation
- 04Analyze a conducting rod sliding on rails through a uniform field