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                                    The unit for permittivity of free space (o) is(a) CN'm2 (b) Nm(d) CNm2 (d) CN tm | 
                            
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Answer»  The SI unit for permittivity is farad per meter (F/m or F. m−1). The lowest possible permittivity is that of a vacuum. Vacuum permittivity, sometimes called the electric constant, is represented by ε0and has a value of approximately 8.85×10−12F/m. It's unit is C²N^−1M^−2 ( coulomb squared per Newton per square meter). Like my answer if you find it useful!  | 
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