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Calculate the Coulomb's force between tw...

Calculate the Coulomb's force between two a-particles separated by a distance of `3.2 xx 10^(-15) m.`

Text Solution

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Charge on `alpha ` - particle `=2e = 2 xx1.6 xx10^(-19) C = 3.2 xx10^(-19)C`
`q_1 = q_2 = 3.2 xx10^(-19)C`
`r = 3.2 xx10^(-15) m`
`F=1/(4piin_0)(q_1q_2)/(r^2)`
`= 9 xx10^9 xx((3.2 xx10^(-19))^(2))/((3.2 xx10^(-15))^(2))`
`= 9 xx10^(9-8)=90N`
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