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Find the electrostatic force between two...

Find the electrostatic force between two protons placed in free space separated by a distance of 20 cm.

Text Solution

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We know charge on each proto `= e = 1.6 xx10^(-19) C`
So `q_1 = q_2 = 1.6 xx 10^(-19) C`
r = 20 cm,= `20 xx 10^(-2) m`
`F=1/(4piin_0)(q_1q_2)/r^2`
`= 9 xx10^9 xx((1.6xx10^(-19))^(2))/((20xx10^(-2))^(2))`
`F = 5.76 xx10^(-27)N`
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