We know when permitivity is more than force of attraction between the charges is less but what if it is like charges than in that case is it correct to say more the permittivity more the repulsion between charges or permittivity is only defined for the obstruction/ hinderence to unlike charges.

Solution,
No permittivity is defined for magnitude of force . Wheather it is force of attraction or force of repulsion. More the permittivity , less will be the magnitude of force wheather it is attractive or repulsive. Permittivity is defined for all types of charges . For like charges , higher permittivity means less force of repulsion and for unlike charges , higher permittivity means less force of attraction. Permittivity is related to magnitude of force. 

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