Electric Charge

• Electric Charge: Determines the electric interaction and magnetic interaction between subatomic particles.
• Electric charge: Represented by “q” with the unit coulomb (C)
• Law of charges: “Like charges repel, unlike charges attract.”
• Subatomic particles are measured in terms of “e” (charge)
• 1C = $6.242 \times 10^{18} e$
• Conductors: Materials that allow electrical charges to move from one material to another.
• Charging by Rubbing: electrically neutral body can gain a charge by rubbing or friction
• Charging By Conduction: Electrons transfer to the object making it the same charge.
• Charging by Induction: Electrons move within the object making the closest side oppositely charged