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Calculate the energy per unit volume of a medium of dielectric constant 3, if the intensity of the electric field is `100V//m`.A. `1.328xx10^(-8) J//m^(3)`B. `4.2xx10^(-8) J//m^(3)`C. `13.28xx10^(-8) J//m^(3)`D. `42xx10^(-8) J//m^(3)` |
Answer» Correct Answer - C `u=1/2in_(0)kE^(2)=(8.85xx10^(-12)xx3xx10^(4))/2` `=13.28xx10^(-8)J//m^(3)` |
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