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Chapter: electrostatic & Gauss law Sub Topic: Column's inverse square law Difficulty:  very very basic  Question: a body of charge of 9.6x10⁶ coulomn It is  Answer: Possible  Any body can have many charges 

Chapter: electrostatic & Gauss law Sub Topic : Column's inverse square law Difficulty: very basic  Question: One million electrons are added to a glass rod.The total charge on the rod is  Answer: We know that a million = 10⁶  (in scientific notation) We know that  Magnitude of charge (q-) =  -1. 6 X 10 -19 Total change on the glass rod = =  10 6 (  -1.6 X 10 -19 ) = -1.6 X 10 -13