1.

A small ball carries a charge equal to 'e' Coulomb, where 'e' is the charge on an electron. 20 such balls are put in a cylindrical box and sealed. The total charge in the box will be ___ coulomb.

Answer»

A small ball carries a charge equal to 'e' Coulomb, where 'e' is the charge on an electron. 20 such balls are put in a cylindrical box and sealed. The total charge in the box will be ___ coulomb.



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