The capacitance of a parallel plate capacitor with air as medium is 6 F. With the introduction of a dielectric medium, the capacitance becomes 30 F. The permittivity of the medium is : ( 0 = 8.85 10 -12 C 2 N -1 m -2 )

1. A. 1.77 10 -12 C 2 N -1 m -2
2. B. 0.44 10 -10 C 2 N -1 m -2
3. C. 5.00 C 2 N -1 m -2
4. D. 0.44 10 -13 C 2 N -1 m -2

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