Question

6. How many electrons may be removed from a body so that it may have
a charge of (a) + 1 milli coulomb (b) + 1 micro coulomb.
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Answer 1

Answer:

Q=1×10^6C

charge on electron=1.6×10^-19C

As Q=ne

where n is no of electrons

n=Q/e

n=1×10^6/1.6×10^-19

n=0.625×10^25

n=625×10^22 electrons