Find the relative permittivity of dielectric material used in a parallel plate capacitor if electric flux density D = 15 µC/m^2 and energy density is 20 J/m^3.
- A. 0.6
- B. 0.8
- C. 0.9
- D. 1.1
ISRO Electrical Engineering (EE) 2020 - Question 31
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