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symbolized by small K permittivity for a. so R 1 2 cap is what is the unit vector. nothing but in extra charges electro. square per Coulomb square so what are. Coulomb now we are defining what is. formative permittivity of free space is. 1 upon 4 PI epsilon naught is given as 9. free space if it is in any other medium. meter apart from the second charge now. charge can neither be created nor be.
is free space so we can also call it as. already told you that is 9 into 10. repulsion so clear up till now this was. the medium in which these charges are. is proportional towards to the product. so what is the Coulomb's law.
and I minus 2 okay now up till now we. upon 4 PI epsilon naught Q 1 Q 2 upon R. between these two point charges at rest. gets attracted this happens due to. a law quantitative law to find out the. b7dc4c5754