please solve it

Asked by  | 20th Feb, 2010, 03:56: PM

Expert Answer:

We find need to find the number of electrons in 75 kg of electrons.

1 electron has a mass of 9.10x10-31 kg.

Hence the number of electrons, 75/9.10x10-31= 8.24 x 1031 electrons.

Charge on 75 kg electrons = 8.24 x 1031 x 1.603x10-19 = 13.21x1012 C = 13.21 TC




Answered by  | 20th Feb, 2010, 06:38: PM

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