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Electromagnetic Induction
- Induced EMF: If a magnet and a coil move relative to each other, a potential difference, called electromotive force, is induced in the loop, and an electric current will exist in the loop, even though no battery is connected.
- Motional EMF: If a conducting rod, of length L, is moved with a constant velocity v, perpendicular to its length, in a uniform magnetic field B, an emf will be induced in the rod, given by emf = L B v.
Electromagnetic Induction
Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.
- Intro
- Induced EMF
- Electro Motive Force
- Hang a Wire Loop and Using a Magnet
- Magnetic Field is Strong
- Induced EMF is Not Related
- Motional EMF
- Example
- Where Does the Energy Come From
- Magnetic Waves with Conductive Bar
- To Keep the Rod Moving With Constant Velocity
- Work Done By External Agent in 1 Min
- Relation to Magnetic Flux
- Magnetic Flux
- Extra Example 1: Motional EMF of Rod
- Extra Example 2: Motional EMF, Current, Power
- Extra Example 3: Current in Resistor































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