Class 12 Physics Electric Charges Fields Electric Charge

Electric Charge

Electric charge is the physical property of matter that causes it to experience a force when placed in an electromagnetic field.

  • Electromagnetism is the phenomenon of the interaction of electric currents or fields and magnetic fields.

  • When insulating surfaces are rubbed against each other, a static charge is developed which gets discharged after getting in contact with a conductor.
  • Only one of the two charges(or polarity) gets developed on rubbing – either positive or negative. An object becomes positively charged when it loses the loosely bound electrons to another object while rubbing. The other object gains electrons and becomes negatively charged.
  • When like charges are brought near, they repel each other. Unlike charges attract each other.
  • The charges get neutralized when the two bodies are brought in contact.
  • An example of electric charge generation through rubbing of glass rod with silk and plastic rod with silk is mentioned below:

 

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