(b) A solid contains 5 × 10^28 atoms/m^3 each with a polarisability of 2×10^–40 F m^2 . Assuming that the internal field is given by the Lorentz formula. Calculate the ratio of internal field to the external field. 0 = 8.854 × 10^–12 Fm^–1 .
(b) A solid contains 5 × 10^28 atoms/m^3 each with a polarisability of 2×10^–40 F m^2 . Assuming that the internal field is given by the Lorentz formula. Calculate the ratio of internal field to the external field. 0 = 8.854 × 10^–12 Fm^–1 .
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(a) Carbon tetrachloride contains 74 electrons in its molecule. Its relative permittivity is 2.26 and density 1.68 × 10^3 kg/m^3. If the field acting on the liquid is 5 × 10^6 N/C , what is its electronic polarizability, polarization and average electron displacement?
(b) A solid contains 5 × 10^28 atoms/m^3 each with a polarisability of 2×10^–40 F m^2 . Assuming that the internal field is given by the Lorentz formula. Calculate the ratio of internal field to the external field. 0 = 8.854 × 10^–12 Fm^–1 .
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