1
Question
How many electrons are there in 1 kg?
How many electrons are there in 1 kg?
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Solution
Mass of 1 electron = 
Total Mass = 1 Kg
number of electrons = Total Mass/Mass of 1 electron
= 
.
= 
= 
Therefore 1 kg of electrons contains = 
electrons.
Mass of 1 electron =
Total Mass = 1 Kg
number of electrons = Total Mass/Mass of 1 electron
= .
=
=
Therefore 1 kg of electrons contains = electrons.
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