Assertion (A): In ionic dielectrics, P = Pe + Pi. Reason (R): In ionic crystals, permanent electric dipole moment is zero.

In ionic dielectrics μp = ∑i ei ri and Po = 0. Therefore P = Pe + Pi.

Correct Answer: Both A and R are true and R is correct explanation of A

Explanation:

In ionic dielectrics μ_p = ∑_i e_i r_i and P_o = 0.

Therefore P = P_e + P_i.

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