A paisa coin is made up  Al.Mg alloy and weighs 0.75 g. It has a square  shape and its
Channel: Doubtnut
Date: 16/08/2020

A paisa coin is made up  Al.Mg alloy and weighs 0.75 g. It has a square  shape and its diognal  measures  17mm. It is electrically neutral  and constants  equal  amounts  of positive and negative charges . Treating the paisa coin  made up  of only Al, find the magnitude of equal  number of positive and negative  charges. What concluision do you draw from this magnitude ?