Physics: Week 28

In week 28 of the Ron Paul Curriculum physics course, we covered Electromagnetic applications.

AC generator and DC generator diagram

Generator equations

Transformers: a device for increasing or decreasing voltage.  Think of hydro wires, coming from the road to a house.

Transformer equations

Mutual inductance: Units of inductance: called a henry (H)

Self inductance: An AC circuit always contains some inductance, though it is often quite small.  If in some circuits we desire to have inductance, you can build indicators into the circuit.

Impedance intro: the resistance to applying ac voltage.  If the inductance is high, there will be a relatively low current.  This resistance to flow of electricity is a type of impedance.

LR diagram

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