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CBSE Class 12-science Answered

Ten electron have been removed from each atom to form ions.find the electrostatic force between two such ions when separated by a distance of 4A in a medium of dielectric constant 4?
Asked by bablukumarbablukumar255 | 19 Jun, 2019, 01:59: PM
answered-by-expert Expert Answer
if 10 electrons are removed from atom, then charge of ion is +10e
 
couloumb force F between charges if they are 4 A° ( d = 4 A°) apart in a medium of dielectric constant εr = 4 is given by,
F = begin mathsize 14px style fraction numerator q squared over denominator 4 πε subscript straight r straight epsilon subscript straight o space straight d squared end fraction space equals space 9 cross times 10 to the power of 9 fraction numerator begin display style open parentheses 10 cross times 1.6 cross times 10 to the power of negative 19 end exponent close parentheses squared end style over denominator 4 cross times 16 cross times 10 to the power of negative 20 end exponent end fraction space end style = 3.6×10-8 N
Answered by Thiyagarajan K | 19 Jun, 2019, 02:32: PM

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