What is Faraday's law? Describe the different kinds of processes which will generate a voltage. Relate each to Faraday's law. What is Lenz's law? How does an electric generator work? What is the difference between a generator and an electric motor? Express Faraday's law in the form of an integral. Relate Faraday's law to the action of a dynamic microphone. How does the pickup on an electric guitar work? What is a betatron? *Faraday's law *Moving magnet *Moving wire in magnetic field *Rotating coil in magnetic field *Lenz's law *Electric generator *Electric motor *Generator-motor pair *Faraday's law integral *Dynamic microphone *Microphone principles
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HyperPhysics***** Physics 1112K Go Back

## Inductance

 What is an inductor? How is the inductance related to the physical properties of the coil? How do you calculate the inductance of a solenoid? ... a toroid? Use Faraday's law to relate the induced emf across a coil to its inductance. Describe the buildup of current in an inductor when it is connected to a battery. Describe the decay of current when the battery is removed. Describe how energy is stored in an inductor which has current flowing in it. How does the energy density in a coil depend upon the magnetic field? What is mutual inductance and how does it compare with self-inductance? What useful tasks can be accomplished by a transformer? What are the limitations on the power output of a transformer? What is the principle of operation of a metal detector? *Inductors *Inductance of a solenoid *Inductance of a toroid *Inductive emf *RL circuit transients *Energy in inductor *Energy density *Mutual inductance *Coupled coils *Transformer
Index
HyperPhysics***** Physics 1112K Go Back