Electric charge is a fundamental property of matter. Particles with charge exert forces on each other: like charges repel, while opposite charges attract.

Audio Explanation

Prefer to listen? Here's a quick summary of the nature of electric charge.

Visual Representation

[Image of the structure of an atom showing protons, neutrons, and electrons]

+ + Like Charges Repel + - Opposite Charges Attract

Key Principles of Charge

  • Two Types: Charge comes in Positive (+) and Negative (-).
  • Quantization: Charge is not continuous. It comes in discrete packets. The smallest unit of “free” charge is the elementary charge ($e = 1.602 \times 10^{-19} \text{ C}$).
  • Conservation: Charge cannot be created or destroyed, only transferred from one object to another.

💡 Quick Concept Check:

What happens to the total charge of a system if an electron moves from Object A to Object B?

Click to Reveal Answer
The **total charge remains constant** due to the Law of Conservation of Charge. Object A becomes more positive and Object B becomes more negative, but the sum does not change.
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