Electrostatic Charging Methods

Electrostatic Charging Methods

Electric Charge

• Static electricity arises from an imbalance of electrical charges.
• Charges are classified as positive or negative.
• Charges are measured in coulombs (C).
• Like charges repel, and unlike charges attract.

Interaction of Charges

• A neutral object has an equal number of positive and negative charges.
• Charge separation occurs when a charged object is near a neutral object, leading to attraction.

Conductors and Insulators

• Atoms consist of electrons, protons, and neutrons.
• An object's net charge is the sum of its electrons and protons.

Methods of Charging

• Charging by Rubbing (Friction):
  • Involves rubbing two objects together.
  • The triboelectric series determines charge acquisition tendency.
• Charging by Conduction (Contact):
  • A charged object touches a conductor.
  • Electrons transfer between objects until they have the same charge.
• Charging by Induction:
  • Charge rearrangement in a conducting object due to an external charged object.

Law of Conservation of Charge

• The total electric charge in a closed system remains constant.