Electromagnetism: Charges, Forces, and Fields

Fundamentals of Electricity and Magnetism: Charges and Forces

Introduction to Electricity and Magnetism

  • Significance: Electricity and magnetism are fundamental forces that help us understand the universe, govern behavior in chemistry and biology, and are crucial for modern technology.

Fundamental Particles (at normal everyday energies)

  • There are four basic particles that are relevant in our local environment:

    1. Electron: Negatively charged (elemental charge).qe=−1.6×10−19 Cq_e = -1.6 \times 10^{-19} \text{ C}).

    2. Up Quark: Positively charged. Contributes to protons and neutrons.

    3. Down Quark: Negatively charged. Contributes to protons and neutrons.

    4. Neutrino: The