Charge (Electric Charge)
Charge is a basic property of matter due to which objects experience electrical force. It is responsible for attraction and repulsion between objects.

Types of Charges

1️⃣ Positive Charge (+)

• A body has positive charge when it loses electrons.

• Example: A glass rod rubbed with silk becomes positively charged.

2️⃣ Negative Charge (−)

• A body has negative charge when it gains electrons.

• Example: A plastic rod rubbed with wool becomes negatively charged.

Important Rules

• Like charges repel each other ( + with + or − with − ).

• Unlike charges attract each other ( + with − ).

Additional Points

• The SI unit of charge is Coulomb (C).

• Charge is carried by particles like:

  • Electron (− charge)

  • Proton (+ charge)