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Suppose the exact charge neutrality does...

Suppose the exact charge neutrality does hold not in a world and the electron has a charge 1% less in magnitude than the proton. Calculate the Coulomb force acting between two blocks of iron each of mass 1 kg separated by a distance of 1m. Number of protons in an iron atom =26 and 58 kg of iron contains `6xx10^26` atoms.

Text Solution

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Each atom of iron will have a net positive charge `26xx0.01xx1.6xx10^-19`C on it in the assumed world. The total positive charge on a 1 kg block would be
`(6xx10^26)/58xx26xx1.6xx10^(-10)C`
`=4.3 xx10^5C`
The Coulomb force between the two blocks is
`=1/(4piepsilon_0) (q_1 q_2)/r^2= (9.0xx10^9 (N-m^2/C^2)xx(4.3xx10^5C)^2/(1 m)^2)`
`=1.7xx10^21N`.
A tremendous force indeed!
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