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Biophysics For Dummies by Ken Vos

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Chapter 16

Charging Matter: The Laws of Physics for Electricity, Magnetism, and Electromagnetism

In This Chapter

arrow Interacting objects via electric and magnetic fields

arrow Supplying power and energy to the system

arrow Building electrical circuits

The electromagnetic force is the primary force in biophysics, and it’s the force that makes biological systems work and binds them together. Only four fundamental forces exist in nature: the strong force, the weak force, the electromagnetic force, and the gravitational force. Most things are based on the electromagnetic force, from signals in nerves, thoughts in the brain, to a muscle contracting, to the binding of atoms to form molecules. This force forms and controls biological organisms.

This chapter allows you to understand electricity, magnetism, and electromagnetism, and how they interact with matter. These sections describe the laws of electromagnetism and how charge, electric fields, and magnetic fields interact; power, energy, and the storage of energy; and circuits and neural networks.

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