This lesson covers the concepts of magnetism and heat flow, explaining how they relate to the functioning of a motor. It starts with an explanation of magnetism, discussing the flow of magnetic flux and the factors that influence it, such as current and the number of turns in a coil. The lesson then moves on to the concept of heat flow, explaining how it is measured and the factors that influence it. The lesson also discusses the concepts of reluctance, permeability, and inductance, and how they relate to the flow of magnetism and heat. It concludes with a recap of the seven types of flows discussed and their relation to Ohm's law and Kirchhoff's laws.

- Magnetism involves the flow of magnetic flux, which is influenced by factors such as current and the number of turns in a coil.
- Heat flow is measured in watts and is influenced by factors such as temperature difference and thermal resistance.
- The concepts of reluctance, permeability, and inductance play a crucial role in the flow of magnetism and heat.
- The types of flows discussed in the lesson all relate to Ohm's law and Kirchhoff's laws, which state that the thing that is flowing is conserved and the field that is causing the flow is a conservative field.

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