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ar Which is bigger, a coulomb or charge on an electron ?How many electronic charges form one coulomb of18]charge ?Ans. One coulomb, 625 x 10

Answer»

an electron is 1 divided by a number with19zeroes coulombs, so hopefully you can imagine how mini-tiny an electron charge is, compared to a Coulomb of charge.

This is because the Coulomb is defined as the amount of charge each second through a certain surface, when the current is 1 A (ampere).

This is in turn related to the detection of themagneticforce, which is much more feeble and therefore needs a large amount of elementary charge to flow, to be detectable.



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