Class 8 Physics Some Natural Phenomena Electric Charges

Lightning is caused due to static charges. So, before we understand lightning, let us understand about electric charges.

  • Electric changes at rest(without motion) is referred to as Static Electricity.
  • There are 2 types of static charges : Positive (+) and  Negative (-)
  • Static charges are produced by the friction between two interacting bodies (See examples below)
  • Static electric charges exert a force on each other. This force could be attractive or repulsive depending on the charge
  • Two like charges repel each other. 
  • Unlike charges attract each other                                   

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